Nespresso Ef483 484 Users Manual

EF485486 to the manual ebb0b7cc-c080-4946-a2e2-63f83acd52d2

2015-01-21

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S E R V I C E  M A N U A L
C I T I Z  C O F F E E  M A C H I N E S
Citiz EF483/484
Citiz&milk EF485/486
Citiz&Co EF487/488
Version1.2en
Citizservicemanual
2
C O N T E N T S
1 GeneralSafetyNotes........................................................................................6
2 Modeloverview ...................................................................................................7
2.1 Modelrange ....................................................................................................... 7
2.2 Coreunitversions .............................................................................................. 8
3 MainComponents ..............................................................................................9
3.1 Overviewcoreunit,Drange ..........................................................................9
3.1.1 Interiorviewcoreunit,Drange...........................................................10
3.2 Overviewcoreunit,Crange ........................................................................ 11
3.2.1 Interiorviewcoreunit,Crange...........................................................12
3.3 OverviewmodelCitiz ..................................................................................... 13
3.4 OverviewmodelCitiz&milk ..........................................................................14
3.4.1 OverviewmilkfrotherAERO3 ...............................................................15
3.5 OverviewmodelCitiz&Co ............................................................................ 16
3.6 FluidSystem.................................................................................................... 17
3.6.1 Watercircuitdiagramofcoreunit(allCitizversions)..............................17
3.6.2 WatercircuitofmodelsCitiz/Citiz&milk............................................... 18
3.6.3 WatercircuitofmodelCitiz&Co ............................................................19
4 TechnicalData ..................................................................................................20
4.1 RatingPlates....................................................................................................20
4.1.1 Examplesofbrandspecificratingplates ................................................ 20
4.1.2 Ratingplatedetails .................................................................................23
4.1.3 Ratingplateofmilkfrother(modelCitiz&milk) ......................................24
4.2 Summaryoftechnicaldata............................................................................... 25
4.2.1 Technicaldataofcoffeemachines .........................................................25
4.2.2 Technicaldataofmilkfrother(modelCitiz&milk)..................................27
4.2.3 DimensionsandweightmodelCitiz......................................................28
4.2.4 DimensionsandweightmodelCitiz&milk ...........................................29
4.2.5 Dimensionsandweightmilkfrother......................................................29
4.2.6 DimensionsandweightmodelCitiz&Co.............................................30
5 Operation............................................................................................................31
5.1 Generalinformation.......................................................................................... 31
5.2 Statusindication...............................................................................................31
5.2.1 Statusindicationofcoffeemachine ........................................................31
5.2.2 StatusindicationofmilkfrotherAERO3..................................................33
5.3 Machinemodes................................................................................................34
5.3.1 MachinemodesofCitizcoffeemachines...............................................34
5.3.2 MachinemodesofmilkfrotherAERO3...................................................35
5.4 Program/resetfilluplevel............................................................................... 36
5.4.1 Programmingthefilluplevel................................................................... 36
5.4.2 Resettingthefilluplevel .........................................................................36
5.5 Emptywatersystem.........................................................................................37
Citizservicemanual3
6 Maintenance ...................................................................................................... 38
6.1 Dailymaintenanceandcleaning ...................................................................... 38
6.1.1 Beforefirstcoffeeoratthestartofday.................................................. 38
6.1.2 Afterlastcoffeeorattheendofday....................................................... 39
6.1.3 MilkfrotherofmodelCitiz&milk ............................................................ 40
6.2 Descaling ......................................................................................................... 41
6.2.1 DescalingprocedureformodelsCitizandCitiz&milk ........................... 41
6.2.2 DescalingprocedureformodelCitiz&Co.............................................. 45
7 Troubleshooting ............................................................................................... 49
7.1 Checklistforcoffeemachine(allmodels) ....................................................... 49
7.2 Checklistformilkfrother ................................................................................. 51
8 Repairs............................................................................................................... 52
8.1 Safetyinstructions........................................................................................... 52
8.2 Repairandmountingtips ................................................................................. 52
8.3 Toolsandaccessories ..................................................................................... 55
8.4 PlatformdisassemblymodelCitiz.................................................................. 56
8.4.1 Generaldisassembly .............................................................................. 56
8.4.2 Replacingwatertankconnector ............................................................. 59
8.4.3 Replacingmainsswitch .......................................................................... 60
8.4.4 Replacingpowercord ............................................................................. 62
8.4.5 Removingcoreunit................................................................................. 64
8.5 PlatformdisassemblymodelCitiz&milk ....................................................... 67
8.5.1 Generaldisassembly .............................................................................. 67
8.5.2 Replacingwatertankconnector ............................................................. 71
8.5.3 Replacingmilkfrotherconnector ............................................................ 73
8.5.4 Replacingmainsswitch .......................................................................... 74
8.5.5 Replacingpowercord ............................................................................. 75
8.5.6 Removingcoreunit................................................................................. 77
8.6 PlatformdisassemblymodelCitiz&Co......................................................... 80
8.6.1 Generaldisassembly .............................................................................. 80
8.6.2 Replacingwatertankconnector ............................................................. 84
8.6.3 Replacingmainsswitch .......................................................................... 85
8.6.4 Replacingpowercord ............................................................................. 87
8.6.5 Removingcoreunits ............................................................................... 89
8.7 Disassemblyofcoreunit,Crange................................................................. 91
8.7.1 Generaldisassembly .............................................................................. 91
8.7.2 Replacingcompactbrewingunit............................................................. 96
8.7.3 Replacingpump...................................................................................... 98
8.7.4 Replacingflowmeter ............................................................................ 101
8.7.5 Replacingautomaticprimingdevice(APD) .......................................... 102
8.7.6 ReplacingthermoblockwithNTCsensorandfinewirefuse(s) ............ 104
8.7.7 Replacingelectroniccontrolboardwithbuttonprints ........................... 107
8.8 Disassemblyofcoreunit,Drange............................................................... 109
8.8.1 Generaldisassembly ............................................................................ 109
8.8.2 Replacingelectroniccontrolboardwithbuttonprints ........................... 116
8.9 Wiringdiagrams ............................................................................................. 118
8.9.1 WiringdiagramsmodelCitiz............................................................... 118
8.9.2 WiringdiagramsmodelCitiz&milk,EF 485 /486 ............................. 124
8.9.3 WiringdiagramsmodelCitiz&Co,EF487/488 ............................... 128
Citizservicemanual
4
9 Functiontests .................................................................................................130
9.1 Safetyinstructions..........................................................................................130
9.2 Requiredequipment.......................................................................................130
9.2.1 Overview ............................................................................................... 130
9.2.2 Pressureadapter ..................................................................................131
9.3 Measureflowrate........................................................................................... 132
9.4 Pressureandleakagechecks ........................................................................133
9.4.1 Preparations.......................................................................................... 134
9.4.2 Testrun ................................................................................................. 135
9.5 Measurecoffeetemperature .......................................................................... 136
9.6 Milkfrothertests.............................................................................................138
9.6.1 Measurehotmilktemperature ..............................................................138
9.6.2 Measuremilkfrothratio ........................................................................138
9.7 NTCtemperaturesensorfunctionality............................................................ 139
9.8 Protectiveearth(PE)continuitytest...............................................................141
9.8.1 Whatcoffeemachinehastobetestedandwhen? ............................... 141
9.8.2 General .................................................................................................141
9.8.3 Testsequence ......................................................................................142
9.8.4 Whattodoiftheprotectiveearthcontinuitytestfails............................143
9.9 Protectiveinsulationtest ................................................................................144
9.9.1 Whatcoffeemachineshavetobetestedandwhen? ........................... 144
9.9.2 General .................................................................................................144
9.9.3 Testsequence ......................................................................................145
9.9.4 Whattodoiftheinsulationtestfails .....................................................147
10 ExplosionDrawings......................................................................................148
10.1 ModelCitiz,coreunitDrange(EF483).......................................................148
10.2 ModelCitiz,coreunitCrange(EF484).......................................................149
10.3 ModelCitiz&milk,coreunitDrange(EF485)............................................ 150
10.4 ModelCitiz&milk,coreunitCrange(EF486)............................................ 151
10.5 ModelCitiz&Co,coreunitDrange(EF487).............................................. 152
10.6 ModelCitiz&Co,coreunitCrange(EF488).............................................. 153
11 PartsList ..........................................................................................................154
12 Notes .................................................................................................................158
Citizservicemanual5
P R E F A C E
Thepurposeofthisservicemanualistoprovidetheservicepersonnelwithallnecessary
informationwithregardstocorrecthandling,maintenanceandrepairoftheCitizcoffee
machinetypesEF483/484,EF485/486andEF487/488.
Thismanualshouldbeusedbythetechniciansasavaluableaidtoguaranteethe
permanentreadinessforuseofthemachines.Inordertotakefulladvantageofallthe
functions,itisabsolutelynecessarytofollowtheinstructionsinthismanual.
ForfastaccesstoinformationdirectlyfromthePCorMACmonitor,this servicemanual
isavailableasPDFfileandcanbedownloadedfromthe
Nespresso
technicalwebsite
underhttps://business.nespresso.com.
TherequiredutilitysoftwaretoreadPDFfiles(AdobeReader
®
)forPCsandMAC
computerscanbedownloaded(under http://www.adobe.com)forfreepleaseclickthe
logo:
C O N T E N T  U P D A T E S
Version1.2
• Chapter"Functiontests":correctionoftheprotectiveinsulationtest(connectionof
thetestequipmenttobothneutralandphasepinsinsteadofgroundpin).See
subtitle"Testsequence"onpage145,steps1till3(connectionofthemeasuring
cable).
• Servicemanualisavailableinadditionallanguages:French,German,Spanishand
Italian
Version1.1
• Firstreleasedservicemanualversion,inEnglishonly.
Version1.0
• Testversionforproofreading,inEnglishonly.
Pleasekeepthis
manualtogetherwith
thecorresponding
servicedocumentation.
Thiswayyouareassured
tohavethenecessary
information.
2PDFversionsofthis
servicemanualcan
beselected:
• Ahighlycompressed
versionwithlowpicture
resolutionandsmallfile
size.
• Aversioninprintquality
withhyperlinks,butwith
bigfilesize.
Theversionnumber
ofthisservicemanual
isprintedonthelower
rightcornerofthefront
page.
Citizservicemanual
6
G E N E R A L  S A F E T Y  N O T E S
1 G E N E R A L  S A F E T Y  N O T E S
Asanadditionalsafetymeasure,theuseofaresidualcurrentdevice(RCD),alsocalled
thegroundfaultcircuitinterrupter(GFCI),intherepaircentreishighlyrecommended.
Riskoffatalelectricalshockandfire!
Mainsvoltageinsidethecoffeemachine.
• Unplugappliancebeforecleaning.
• Nevercleanwetorimmerseplug,cordorapplianceinanyfluid.
• Disconnectthemainsplugbeforedisassemblytheappliancemust
befreeofvoltage.
Thisdevicedoes
notprotectagainst
electricalshockdue
tocontactwithbothcir
cuitconductors.
Exampleillustrations
oftypicaldevices.
UseaGFCIwithatrip
levelof46mA(USA)
resp.aRCDwithatrip
levelof1530mA(Europe).
Atriplevelabove30mA
providesonlyverylimited
protectionagainstharm
fromanelectricshock.
1) RCDprotectedsocketoutlet
2) PluginRCDunit
3) GFCIsocket
4) PluginGFCI
Dangerofburns!
Hotpartsandwaterunderpressureinsidethecoffeemachine
(particularlyinthethermoblock).
• Letcoffeemachinecooldownbeforecleaningordisassembly.
Citizservicemanual7
M O D E L  O V E R V I E W
2 M O D E L  O V E R V I E W
2.1 Modelrange
WithcoreunitDrange:WithcoreunitCrange:
Eachmodel
 hasaspecialplatform
 isavailablein2differentdesigns,dependingonthecoreunitversion(CorDrange).
1) Citiz
2) Citiz&milk
3) Citiz&Co
Acoreunitisthe
actualcoffee
machine,mountedon
aplatform.
Citizservicemanual
8
M O D E L  O V E R V I E W
2.2 Coreunitversions
Drange Crange
Thiscomparison
helpstoidentifythe
coreunitversion.
1) Coffeeoutlet
2) Closinghandle
3) Coffeebuttons
4) Cupholder
Thereareadditional
differencesbetween
the2versions(cov
ers,wiringetc.)notmen
tionedinthetable.
Differentcomponents Drange Crange
Coffeeoutlet(1) conturedcoffeeoutlet "flat"coffeeoutlet
Closinghandle(2) chromiumplatedclosinghandle blackclosinghandle
Coffeebuttons(3) arrangedonbothsidesofthe
closinghandle
arrangedbehindtheclosing
handle
Cupholder(4) cupholderwithslottedrecesses cupholderwithcircularrecesses
Citizservicemanual9
M A I N  C O M P O N E N T S
3 M A I N  C O M P O N E N T S
3.1 Overviewcoreunit,Drange
Forplatformcompo
nentsrefertomodel
overview.
1) Cupsupport
2) Wastewatercontainer
3) Capsulecontainer(usedcapsules)
4) Coffeenozzle
5) Steamcover
6) Closinghandle
7) Button"smallcup"(Espresso)
8) Button"largecup"(Lungo)
9) Sidepanelsleft/right
10)Rearcover
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M A I N  C O M P O N E N T S
3.1.1 Interiorviewcoreunit,Drange
1) Buttonprints
2) Capsulebay
3) Brewingunit(TMBU,TolkienMini
BrewingUnit)
4) Pump(InvensysCP4/SP)
5) Flowmeter(FHKSC12)
6) Electroniccontrolboard
(withprotectivecovers)
7) Selfprimingdevice(APD)
8) NTCtemperaturesensor
9) Thermoblock(EF2003)
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M A I N  C O M P O N E N T S
3.2 Overviewcoreunit,Crange
1) Cupsupport
2) Wastewatercontainer
3) Capsulecontainer(usedcapsules)
4) Sidepanel,left
5) Sidepanel,right
6) Coffeenozzle
7) Steamcover
8) Closinghandle
9) Button"smallcup"(Espresso)
10)Button"largecup"(Lungo)
11)Topcover
12)Rearcover
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M A I N  C O M P O N E N T S
3.2.1 Interiorviewcoreunit,Crange
1) Capsulebay
2) Brewingunit(TMBU,TolkienMini
BrewingUnit)
3) Buttonprints(undertopcover)
4) Pump(InvensysCP4/SP)
5) Flowmeter(FHKSC12)
6) Electroniccontrolboard
(withprotectivecovers)
7) Selfprimingdevice(APD)
8) NTCtemperaturesensor
9) Thermoblock(EF2003)
Citizservicemanual13
M A I N  C O M P O N E N T S
3.3 OverviewmodelCitiz
Thisisthebasicmodelwiththesmallestplatform(9).
Thedripgrid(1)
 existsin2versions,
 matcheswiththecupholderofthecoreunitversion(e.g.circularrecesses).
Thismodelispictured
withaCrangecore
unit.
1) Dripgrid
2) Driptray
3) Coreunit(e.g.Crange)
4) Watertankcover
5) Watertank
6) Watertankconnector
7) Powercord
8) ON/OFFswitch(mainsswitch)
9) Platform
Thecoreunitsof
modelCitizandCitiz
&milkarenotcom
patibleduetodifferent
electroniccontrolboards.
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M A I N  C O M P O N E N T S
3.4 OverviewmodelCitiz&milk
Theplatformofthismodelisequippedwithamilkfrother(8).
Thedripgrid(1)
 existsin2versions,
 matcheswiththecupholderofthecoreunitversion(e.g.circularrecesses).
Thismodelispictured
withaCrangecore
unit.
1) Dripgrid
2) Driptray
3) Platform
4) Storageplacesforwhisks
5) Coreunit(e.g.Crange)
6) Watertank
7) Watertankcover
8) Milkfrother(Aero3)
9) Lid
10) Milkfrotherstartbutton
11) Watertankconnector
12) Powercord
13) Milkfrotherconnector
14) ON/OFFswitch(mainsswitch)
15) Cupstorage(removable)
Thecoreunitsof
modelCitizandCitiz
&milkarenotcom
patibleduetodifferent
electroniccontrolboards.
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M A I N  C O M P O N E N T S
3.4.1 OverviewmilkfrotherAERO3
Theinsideofthejug(3)
 haslevelmarks(6),
 issurfacecoatedforeasycleaning.
Themilkfrother
AERO3ispartofthe
standardequipment
ofthemodelCitiz&milk.
1) Lid
2) Seal
3) Jug
4) Powerplug
5) Startbutton(red/bluebacklighted)
6) Indicationof2max.milklevels
(120ml/240ml)
7) Mixerforhotmilk
8) Springwhiskformilkfoam
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M A I N  C O M P O N E N T S
3.5 OverviewmodelCitiz&Co
Thedripgrid(1)
 existsin2versions,
 matcheswiththecupholderofthecoreunitversion(e.g.circularrecesses).
Thismodelispictured
withaCrangecore
unit.
1) Driptray
2) Dripgrid
3) ON/OFFswitch(mainsswitch)
4) Powercord
5) Coreunits(e.g.2xCrange)
6) Watertank
7) Watertankcover
8) Platform
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M A I N  C O M P O N E N T S
3.6 FluidSystem
3.6.1 Watercircuitdiagramofcoreunit(allCitizversions)
Legend:
Theselfprimingdevice(4)
 allowsthepumptosuckwaterwhenitisfilledwithair(newmachine,emptywater
tanketc.)
 removesairbubblesfromthewatercircuit
 feedsawater/airmixbackintothewatertank.
1) Watertank
2) Flowmeter
3) Pump
4) Selfprimingdevice
5) Thermoblock
6) Minibrewingunit(MBU)
7) Capsulecontainer
8) Wastewatercontainer
9) Driptray
Freshcoldwater
Freshhotwater
Coffee
Waste/dripwater
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M A I N  C O M P O N E N T S
3.6.2 WatercircuitofmodelsCitiz/Citiz&milk
1) Watertank
2) Watertankconnector
3) Selfprimingdevice
4) Thermoblock
5) Flowmeter
6) Coffeeoutlet
7) Brewingunit
8) Pump
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M A I N  C O M P O N E N T S
3.6.3 WatercircuitofmodelCitiz&Co
1) Watertank
2) Pump
3) Brewingunit
4) Coffeeoutlet
5) Flowmeter
6) Thermoblock
7) Watertankconnector
8) Selfprimingdevice
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T E C H N I C A L  D A T A
4 T E C H N I C A L  D A T A
4.1 Ratingplates
4.1.1 Examplesofbrandspecificratingplates
Nespresso,EUversion
Thetypeplatecanbe
foundatthebottomof
thecoffeemachine’s
platform.
Thisoverviewshows
examplesofvarious
brandsandissubject
toalterations.
EF484CitizC110red EF483CitizD110black
EF486Citiz&milkC120red EF485Citiz&milkD120black
EF488Citiz&CoC130red EF487Citiz&CoD130black
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T E C H N I C A L  D A T A
DeLonghi,EUversion
Koenig,CHversion
EF483CitizD110Limousineblack/DeLonghiEN165.B EF483CitizD11060'sWhite/DeLonghiEN165.CW
EF485Citiz&milkD120Limousineblack/DeLonghi
EN265.BAE
EF487Citiz&Co.D130Limousineblack/DeLonghi
EN325.B
EF483CitizD110Limousineblack/KoenigCitiz EF483CitizD11060'sWhite/KoenigCitiz
EF485Citiz&milkD120Limousineblack/KoenigCitiz&milk
EF487Citiz&Co.D130Limousineblack/KoenigCitiz&Co.
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T E C H N I C A L  D A T A
Krups,EUversion
Magimix,EUversion
EF484CitiZXN700510grey EF484CitiZXN700610red
EF486CitiZ&milkXN710610red EF488CitiZ&CoXN750510grey
EF483CitizM190Ref11290black EF483CitizM190Ref11291cream
EF485CitizM190MilkRef11300black EF487CitizM190DuoRef11305black
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T E C H N I C A L  D A T A
Turmix,ATversion
4.1.2 Ratingplatedetails
EF484CitizC110fireenginered/TurmixTX170Citiz EF484CitizC110steelgrey/TurmixTX170Citiz
EF486Citiz&milkC120fireenginered/
TurmixTX270Citiz&milk
EF488Citiz&Co.C130steelgrey/
TurmixTX370Citiz&Co.
1) Brandname
2) Voltageandpowerrating
3) Placeofmanufacture
4) NationalapprovalsignofRussia
(GOSTR)
5) NationalapprovalsignofGermany
(VDE)
6) Barcode
7) Serialnumber
8) Machinetype
9) Specialdisposalicon
(donotdisposewithordinarywaste)
10)Signofconformity(CE)
11)ConformwithRoHSguidelines(lead
freesolder,etc.)
12)Articlenumberoftheratingplate
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T E C H N I C A L  D A T A
Decodingthealphanumericserialnumber
Example:
4.1.3 Ratingplateofmilkfrother(modelCitiz&milk)
Bydecodingthedate
ofproductionand
machinetype,the
coffeemachinecanbe
identifiedexactly. Checksum(ifavailable)
Colorversion
Typeofmainsplug
Mainsvoltage
Distributingpartner
Incrementalnumberperproductionday
Manufacturingplant
Manufacturerdesignationofthemachinetype(EF484)
08312...Dateofproduction
(08=year2008,312=312dayoftheyear)
Notehemainsvolt
agerangesofthedif
ferentmodels.
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T E C H N I C A L  D A T A
4.2 Summaryoftechnicaldata
4.2.1 Technicaldataofcoffeemachines
Mainsvoltageranges
MainsvoltageforCitiz
Europe,RU,AU,CN,KR,SG,HK,ME,ZA,IL,BR,AR........... 220240V/5060Hz
USA,Canada,BR,MX..............................................................120127V/5060Hz
Japan .............................................................................................. 100V/5060Hz*
MainsvoltageforCitiz&milk
Europe,RU,AU,CN,KR,SG,HK,ME,ZA,IL,BR,AR........... 220240V/5060Hz
USA,Canada,BR,MX..............................................................120127V/5060Hz
MainsvoltageforCitiz&Co
Europe,RU,AU,ME,IL............................................................ 220240V/5060Hz
Approvals
ApprovalsforCitiz ........................ CE,UL"forUSAandCanada",PSE,GostR,Ctick,
CCC,KTL,SPRING,SASO,SABS,ISI,IRAM,NOM
ApprovalsforCitiz&milk ............ CE,UL"forUSAandCanada",GostR,Ctick,CCC,
KTL,SPRING,SASO,SABS,ISI,IRAM,NOM
ApprovalsforCitiz&Co .................................................. CE,GostR,Ctick,SASO,ISI
Powerratingsofcoffeemachinemaincomponents
(forallvoltagesandfrequencies)
Thermoblock .....................................................................................................1200W*
*modelCitiz&Co,Australia:1080W
Pump................................................................................................................. 55/60W
Performancedataofcoreunit
Heatingup
Citiz ...................................................................................................... approx.7.6Wh
Citiz&milk ........................................................................................... approx.7.6Wh
Citiz&Co........................................................................................... approx.14.9Wh
1smallcup(40ml*)
Citiz ...................................................................................................... approx.4.3Wh
Citiz&milk ........................................................................................... approx.4.3Wh
Citiz&Co(bothheads)........................................................................ approx.7.6Wh
*Defaultsetting
Technicaldataare
validforallCitizmod
elsunlessexplicitly
statedotherwise.
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26
T E C H N I C A L  D A T A
1largecup(110ml*)
Citiz ...................................................................................................... approx.8.7Wh
Citiz&milk ........................................................................................... approx.8.7Wh
Citiz&Co(bothheads) ...................................................................... approx.14.8Wh
*Defaultsetting
Standbyoperation(in1hour)
Citiz ...................................................................................................... approx.0.7Wh
Citiz&milk ........................................................................................... approx.0.7Wh
Citiz&Co ............................................................................................. approx.2.2Wh
Pump
Pumppressure
Max.permissible .............................................................................. 17.5bar±1.5bar
Duringcoffeepreparation(dependingonthetypeofcoffee).......................... 916bar
Flowperformance..................................................................120240ml/min.at12bar
Capacities
Watertank
Citiz ........................................................................................................................1.0l
Citiz&milk .............................................................................................................1.0l
Citiz&Co ...............................................................................................................1.4l
Driptray
Citiz ....................................................................................................................100ml
Citiz&milk .........................................................................................................180ml
Citiz&Co ...........................................................................................................250ml
Capsulecontainer
Citiz,Citiz&milk .................................................................................... 911capsules
Citiz&Co ........................................................................................2x(912)capsules
Temperatures
Operatingtemperature ................................................................... +5°Cupto+45°C
Storagetemperature..................................................................... 25°Cupto+60°C
Safetytemperature(thermalcutoff)................................................................... 167°C
Coffeetemperatureatoutlet....................................................................... 86°C±3°C
Variousdata
Noiseduringbrewingcycle....................................................................max.60dB(A)*
*modelCitiz&milk:measuredwithoutmilkfrother
*modelCitiz&Co:measuredwithonlyonecoreunitrunning
Preheatingtime .......................................................................................approx.60sec
Cablelength .............................................................................................. approx.1.2m
Advisedwatertank
capacitiestoavoid
spilling.
Citizservicemanual27
T E C H N I C A L  D A T A
4.2.2 Technicaldataofmilkfrother(modelCitiz&milk)
Mainsvoltage
Europe........................................................................................ 220240V/5060Hz
USA/Canada ................................................................................120127V/5060Hz
Themilkfrother
 isavailablein2differentmodels,dependingonabovemainsvoltageranges,
 hastomatchthemainsvoltagerangeoftheassociatedcoffeemachine.
Powerrating(dependingonmainsvoltage)
220240V,5060Hz ..................................................................................... 410490W
110127V,5060Hz ..................................................................................... 380505W
Standbyoperation ............................................................................................... <1W
Powerconsumption
Capacity
Hotmilk ...................................................................................................... max.240ml
Hot/coldmilkformilkfroth........................................................................... max.130ml
Ifreplacingadefect
milkfrother,check
mainsvoltagerange.
PreparationVoltage 120V 127V 220V 230V 240V
Unit
Frothmilk:hot
(startingwithcolddevice)
Measuredpower W 452 506 407 445 485
Intensity A 3.77 3.98 1.85 1.93 2.02
Consumptionfor
2testpreparationsWh 19 19 19 19 19
Frothmilk:cold
(startingwithcolddevice)
Measuredpower W 1.98 2.24 2.72 2.80 3.01
Intensityofcurrent
(cos.=0.58) A 40.93 44 30.82 27.51 25.97
Consumptionfor
2testpreparationsWh 0.08 0.09 0.11 0.12 0.13
Hotmilk
(startingwithcolddevice)
Measuredpower W 452 506 407 445 485
Intensityofcurrent A 3.77 3.98 1.85 1.93 2.02
Consumptionfor
2testpreparationsWh 37 37 37 37 37
Citizservicemanual
28
T E C H N I C A L  D A T A
Performancedata
Whiskspeed......................................................................................... 2’0002’700rpm
Preparationtimes
(withfull,semiskimmedorskimmedmilkat8°10°Cfridgetemperature)
Hotmilkfroth(120ml) .....................................................................................5080sec
Coldmilkfroth(120ml) ...................................................................................6080sec
Hotmilk(240ml) .........................................................................................120180sec
Temperature
Hotmilk ............................................................................................. +60°Cto+70°C
Foammilk.......................................................................................... +60°Cto+70°C
Variousdata
Noiseemission ........................................................................................ max.55dB(A)
4.2.3 DimensionsandweightmodelCitiz
Dimensions(widthxheightxlength).............................................130x277x372mm
Cupsupportdown .............................. 8590mm,forespressoandlungocups/glasses
Cupsupportup .......................................................150155mm,formacchiatoglasses
Weight(withoutwater)..............................................................................approx.3.4kg
Theoveralldimen
sionsarethesame
forbothcoreunitver
sions(CandDrange).
Dimensionsinmm
Citizservicemanual29
T E C H N I C A L  D A T A
4.2.4 DimensionsandweightmodelCitiz&milk
Dimensions(widthxheightxlength) ............................................ 237x277x372mm
Weight(withoutwater,milkfrotherincluded) ...........................................approx.4.6kg
4.2.5 Dimensionsandweightmilkfrother
Dimensionsofjugcpl.(diameterxheight) ................................................91x170mm
Whiskforfoam(diameterxheight) ..............................................................33x32mm
Mixerforhotmilk.................................................................................. 15x34x32mm
Weight(withwhiskandmixer) ..............................................................................0.7kg
Theoveralldimen
sionsarethesame
forbothcoreunitver
sions(CandDrange).
Dimensionsinmm
Citizservicemanual
30
T E C H N I C A L  D A T A
4.2.6 DimensionsandweightmodelCitiz&Co
Dimensions(widthxheightxlength).............................................326x281x286mm
Weight(withoutwater).................................................................................approx.7kg
Theoveralldimen
sionsarethesame
forbothcoreunitver
sions(CandDrange).
Dimensionsinmm.
Citizservicemanual31
O P E R A T I O N
5 O P E R A T I O N
5.1 Generalinformation
Foranoverviewofoperationalcontrolssee“MainComponents”onpage 9.
Forbasicoperationofthemachinesuchaspreparingacoffeeandotherrelatedinfor
mation,refertotheusermanual.
Tosimplifymatters,themodelCitizwithcoreunitCrangeisusedtoexemplifythroughout
thischapter.
5.2 Statusindication
5.2.1 Statusindicationofcoffeemachine
ThetwocoffeebuttonswithgreenLEDbacklightshowthestatusofthecoffeemachine
accordingtothefollowingtable:
Machinestatusetc. " Smallcup" 
button
" Largecup" 
buttonLEDsignal
Off BothLED‘soff
Selftest Blinking1Hz,
0.5son,0.5soff
Error
Blinkingfast(2Hz,
0.25 son/0.25soff)
3timesevery2sec
onds
Heatup Blinking1Hz,
0.5son,0.5soff
Ready BothLED‘son
Brewingsmallcup Blinking1Hz,
0.5son,0.5soff
Brewingbigcup Blinking1Hz,
0.5son,0.5soff
Rinsesmallcup
Blinking1Hz,
0.5son,0.5soff
(sameasbrewingsmall
cup)
Rinsebigcup
Blinking1Hz,
0.5son,0.5soff
(sameasbrewingbig
cup)
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32
O P E R A T I O N
Volumebrewingsmallcup
Blinking1Hz,
0.5son,0.5soff
(sameasbrewingsmall
cup)
Volumebrewingbigcup
Blinking1Hz,
0.5son,0.5soff
(sameasbrewingbig
cup)
DescalingreadyBlinking2Hz,
0.25son,0.25soff
Descalingpumpon(descal)
Blinking2Hz,
0.25son,0.25soff
(sameasdescaling
readymode)
Descalingpumpoff(descal)
Blinking2Hz,
0.25son,0.25soff
(sameasdescaling
readymode)
Emptying/Evaporating Blinking2Hz,
0.25son,0.25soff
Standby
Blinking0.5Hz,
1son,1soff
alternately
Resetting
Blinking2Hz,
0.25son,0.25soff
indicationfor3s
Powersave
Blinking0.2Hz,
2.5son,2.5soff
alternately
Overheat
Blinking1Hz,
0.5son,0.5soff
(sameasheatup)
Powersaveactivation
Blinking0.5Hz,
1son,1soff
alternately5times
Machinestatusetc. " Smallcup" 
button
" Largecup" 
button LEDsignal
Citizservicemanual33
O P E R A T I O N
5.2.2 StatusindicationofmilkfrotherAERO3
Theoperatingbuttonwithred/bluebacklightshowsthestatusofthemilkfrother
accordingtothefollowingtable:
Powersavedeactivation
(onlyformodelCitiz&Co)
Blinking0.5Hz,
1son,1soff
alternately3times
Machinestatusetc. " Smallcup" 
button
" Largecup" 
buttonLEDsignal
Toresetaredblink
ingbacklight:
1.Removemilkfrotherfrom
platform.
2.Removecauseoffailureif
possible.
Machinestatusetc. Operatingbutton Lightsignal
Off Backlightoff
Onhotmilkpreparation Redbacklighton
Oncoldmilkfrothprepara
tionBluebacklighton
Failure/malfunction
(e.g.overheatingbecauseof
burntmilk,toolessorno
milk)
Blinkingredbacklight
(1Hz,0.5son,0.5soff)
Failure:milkfrotherhas
wrongmainsvoltagerange
Fastblinkingredbacklight
(2Hz,0.25son,0.25soff
Citizservicemanual
34
O P E R A T I O N
5.3 Machinemodes
5.3.1 MachinemodesofCitizcoffeemachines
ThistablehelpstounderstandtheoperatingmodesofaCitizcoffeemachine:
Machinemode Entermode Actions Exitmode
1Heatupmode Everytimeafterswitch
ingonmachine
Heatsupthermoblock
toreadytemperature
90°Cwithin60swith
outovershootingtarget
temperature
e.g.switchingoff
machine
2SelftestmodeEverytimeafterswitch
ingonmachine
Tests:
• NTCshortcircuit
• NTCconnected
• Thermoblockheating
curve
Errorhandling:
Trackingofthelast5
errorsbyaringbuffer
e.g.switchingoff
machine
3Readymode
• Afterheatupandself
testmodewasok
• Afterbrewingor
volumebrewing
coffee
• Afterresetmode
• Afterleaving
descalingmode
Keepsthermoblock
temperatureat90°C
e.g.switchingoff
machine
4aBrewingmode
4bVolumebrewing
mode(program
mingcupsize)
• Pressandrelease
largeorsmallcoffee
button(brewing
mode)
• Pressandholdlarge
orsmallcoffee
buttonformorethan
3s(programming
mode)
• Pressandrelease
largeorsmallcoffee
buttonwhen
machinewasin
brewingmodeor
automaticexitgiven
bytheflowmeter
• Releaselargeor
smallcoffeebutton
whenmachinewas
inprogramming
mode
• Switchingoff
machine
5Descalingmode
• Switchonmachine,
waituntilready
• Pressandholdboth
coffeebuttonsforat
least3s
• Regulatetempera
tureto65°C(after
pumpwasstarted)
• Stopandstartpump
withanycoffee
button,novolume
brewingindescaling
mode
• Pressandholdboth
coffeebuttonsforat
least0.5s
Note:
Whenmachineis
switchedoffduringany
descalingmode,thenit
goestodescaling
modereadystateafter
nextswitchon.
Citizservicemanual35
O P E R A T I O N
5.3.2 MachinemodesofmilkfrotherAERO3
6Emptyingmode
(evaporing)
1) Switchoffmachine
2) Pressandhold
smallcoffeebutton
3) Switchonmachine
1) Startpump
2) Stoppumpafter
10 s
3) Heatupthermo
blockto105 °C
(100%power)
4) Switchoffther
moblock
5) Gotostandby
mode
Switchoffmachine
7Resettingmode
1) Switchoffmachine
2) Pressandhold
largecoffeebutton
3) Switchonmachine
• Resetthe
programmedlarge
andsmallcoffee
volumestofactory
setting
• Indicatetheresetting
modefor3s
Factorysettings:
• smallcup....40ml
• largecup...110ml
proceedswithselftest
modeautomatically
8Powersavemode
Toenablepowersave
mode:
1) Switchoffmachine
2) Pressandhold
bothcoffeebuttons
3) Switchonmachine
4) Coffeebutton
LED‘sblink5times
alternativelyas
confirmation
Afterthatautomatically
after30 minofnonuse
• Reducethermoblock
temperature
• SwitchLEDindica
tiontopowersave
mode(blinkingalter
natelyevery2sec)
Pressanycoffeebut
tontoactivateready
mode
Todisablepowersave
mode:
1) Switchoffmachine
2) Pressandhold
bothcoffeebuttons
3) Switchonmachine
4) Coffeebutton
LED‘sblink3times
alternativelyas
confirmation
9Failuremode
Automaticallybyfol
lowingfailures:
a)NTCshortcircuit
b)NTCnotconnected
c)Heatuptooslow
Machineindicatesfail
urewithcoffeebutton
LED‘saslongasthe
failureispresent
Whenfailureisfixed
10Standbymode Automaticallyafter
emptyingmode
• Switchthermoblock
off
• SwitchLEDindica
tiontostandbymode
Switchoffthemachine
Machinemode Entermode Actions Exitmode
1Hotmilk/milkfroth
preparation
Pressstartbutton
briefly
Startbuttonlightsup
red.Milkisheatedand
mixed.
Automaticswitchoff
afterpreparation
2Coldmilkfrothprepa
ration
Keepstartbutton
pressedforapprox.
2 sec
Startbuttonlightsup
blue.Milkismixedonly.
Automaticswitchoff
afterpreparation
Machinemode Entermode Actions Exitmode
Citizservicemanual
36
O P E R A T I O N
5.4 Program/resetfilluplevel
Eachcoffeebuttoncanbeprogrammedwithacoffeevolumeforanindividualcupsize.
Theprocedureforprogramming/resettingisthesameforbothcoffeebuttons.
5.4.1 Programmingthefilluplevel
Programmablevolumerange ..........................................................................10750ml
5.4.2 Resettingthefilluplevel
Withthefollowingprocedureallprogrammedfilluplevelswillbesetbacktothisfactory
settings:
Coffeebutton"smallcup" ....................................................................................... 40ml
Coffeebutton"largecup"..................................................................................... 110ml
Eachnewprogram
mingcyclestartswith
themin.volume
(10 mlafter3sec),regard
lessofapreprogrammed
coffeevolume.
1) Preparecoffeeasusual(seeuser
manual),butkeepthecoffeebutton
pressedforatleast3secondsin
ordertostartprogrammingmode.
2) Onlyreleasethebuttonwhenthe
desiredfilllevelisreached.
1) Switchoffthecoffeemachine. 2) Pressandholdthe"largecup"button.
3) Switchonthecoffeemachine.
4) Release"largecup"button.
Citizservicemanual37
O P E R A T I O N
5.5 Emptywatersystem
Aftereveryoperation,somewaterremainsinthecoffeemachine.Thereforethewater
systemmustbeemptied
 ifthecoffeemachinewillnotbeusedforalongtime
 asantifreezemeasure
 forrepairsandshipment.
1) Switchoffcoffeemachine. 2) Removewatertank.
3) Placeabeakerunderthecoffeeout
let.
ModelCitiz&Co:
Onlyonecoreunit
shouldbeemptiedat
thesametime(dangerof
mainssupplyoverload).
Afterthisprocedure,
thecoffeemachine
willnotbereadyfor
approx.10min(untilthe
thermoblockcoolstobelow
100 °C).
4) Pressandholdbutton"smallcup".
5) Switchthecoffeemachineonagain.
6) Releasebutton"smallcup".
 Thepumpstartstodrainthewater
systemandstopsautomatically.
 Thecoffeebuttonsblinkfastsimulta
neously.
7) Afterautomaticstop,switchoffthe
coffeemachine.
Citizservicemanual
38
M A I N T E N A N C E
6 M A I N T E N A N C E
6.1 Dailymaintenanceandcleaning
6.1.1 Beforefirstcoffeeoratthestartofday
TheCitizmodelis
shownasexample.
Maintainandclean
othermodelsaccordingly
.
1) Fillwatertankwithfreshpotable
water.
2) Insertwatertank.
3) FormodelCitiz&milk:
Attachwhisktomilkfrother.Placemilk
frotheronbaseplateconnector.
4) Switchmachineon.
Afteralongerperiodofnonuse:
5) Placeacontainerundercoffeeoutlet.
6) Rinsecoffeemachinebypressingbut
ton"largecup"about6times.
Citizservicemanual39
M A I N T E N A N C E
6.1.2 Afterlastcoffeeorattheendofday
Riskoffatalelectricalshockandfire!
Nevercleanwetorimmerseplug,cordorapplianceinanyfluid.
Unplugapplianceandletitcooldowntoavoidburns.
Platformanddriptray
surfacesarenot
abrasionproof.
Neverusebrushesand/or
cleaningagentsthatcon
tainaggressiveorchemical
componentsresp.sol
vents.
Donotputanypartina
dishwasher.
Useonlyadampclothor
spongeandamildcleaning
agentifnecessary
1) Switchmachineoff.
2) Checkifcapsuleisejected.
3) Emptyandclean
capsulecontainer(a)
wastewatercontainerwithcup
support(b)
driptraywithdripgrid(c).
Donotuseabrush
thewatertankcanbe
scratched.
4) Empty,rinseandcleanwatertank. 5) Reassemblecoffeemachine.
6) Cleancoffeemachinewithadamp
clothifnecessary.
Citizservicemanual
40
M A I N T E N A N C E
6.1.3 MilkfrotherofmodelCitiz&milk
Riskofdamage!
Theinsideofthejugiscoatedforeasycleaning.
Neverusebrushesand/orcleaningagentsthatcontainabrasiveor
aggressive,chemicalcomponentsresp.solvents.
Donotputanypartinadishwasher.
Useonlyadampclothandamildcleaningagentifnecessary.
1) Removemilkfrotherfromplatform. 2) Removelidanddismantlewhisk.
Keepconnectors
dry(onplatformand
atundersideofmilk
frother).
3) Removesealfromlid.
4) Rinseandcleanmilkfrothertogether
withwhiskormixer,lidandseal.
5) Cleanoutsideofmilkfrotherwitha
dampclothifnecessary.
6) Reassemblemilkfrother.
Citizservicemanual41
M A I N T E N A N C E
6.2 Descaling
Usethischarttoinformacustomerwhentodescalethecoffeemachinedependingon
localwaterhardnessandaveragecoffeeconsumption.Doubletheestimatedtime
intervalformodelCitiz&Co.
6.2.1 DescalingprocedureformodelsCitizandCitiz&milk
Onlyuse
Nespresso
descalerordescalingkitneverusevinegar!
Descalercandamagecasingandcontactsurfaces.
Immediatelycleandropsofdescalingsolution.
Thedescalingchartis
basedonacupsizeof
40ml.
fH...Frenchgrade
dH...Germangrade
CaCO
3
...Calciumcarbonate
TheCitizmodelis
shownasexample.
1) Ejectcapsuleorcheckifcapsuleis
removed.
2) Removeandemptycapsule/waste
watercontainer,driptrayandwater
tank.
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42
M A I N T E N A N C E
Observethesafety
instructionsonthe
descalerpackage.
Useacontainerwitha
capacityof1 lmin.
3) Reassemblecoffeemachinewithout
watertank.
4) Placeacontaineronthecupsupport.
5) Fillthewatertankwith0.1 ldecalcifier
(1bag)and0.5 lwater.
6) Insertwatertankintothecoffee
machine.
7) Pressbothcoffeebuttonssimulta
neouslyforatleast3 sec.
8) Themachineisindescalingmodenow
(bothbuttonsblinkingfast).
Citizservicemanual43
M A I N T E N A N C E
Danger!
Hotsplashesof
descalingsolution.
Donotopenhandledur
ingdescalingprocess.
9)
Pressanybuttontostartpump.
Lettheentiresolutioninthetankrun
throughthesystem.
10) Afterwatertankisempty,pourdescal
ingsolutionbackintowatertank.
11)Placeemptycontainerbackoncup
support.
12) Descaleagain:pressany
button
and
waituntilwatertankisempty.
Citizservicemanual
44
M A I N T E N A N C E
Dangerofinjury!
Residualdescaler
maybeharmful.
Rinsethoroughlyto
removeanyresidue.
13) Emptycontainerandputitbackon
cupsupport.
14) Rinseandcleanwatertankthoroughly
andfillitwithfreshpotablewater.
15) Rinsecoffeemachinebypressingany
buttonandwaituntilwatertankis
empty.
16) Pressbothcoffeebuttonssimultane
ouslyforatleast3 sectoenddescal
ingmode.
17) Removeandemptycontainer.
18) Switchoffcoffeemachine.
19) Emptyandcleancapsule/wastewater
containeranddriptray.
20) Cleancoffeemachinewithadamp
clothifnecessary.
Citizservicemanual45
M A I N T E N A N C E
6.2.2 DescalingprocedureformodelCitiz&Co
1) Ejectcapsulesorcheckifcapsules
areremoved.
2) Removeandemptycapsule/waste
watercontainers,driptrayandwater
tank.
Observethesafety
instructionsonthe
descalerpackage.
Usecontainerswitha
capacityof1 lmin.
3) Reassemblecoffeemachinewithout
watertank.
4) Placeacontainerundereachcoffee
outlet.
5) Fillthewatertankwith0.2 ldecalcifier
(2bags)and1.0 lwater.
6) Insertwatertankintothecoffee
machine.
Citizservicemanual
46
M A I N T E N A N C E
7) Pressbothcoffeebuttonssimulta
neouslyforatleast3 sec.onfirstcore
unit.
8) Repeatprocedurewithsecondcore
unit.
9) Themachineisindescalingmodenow
(bothcoffeebuttonsblinkingfaston
coreunits).
Dangerofinjury!
Hotsplashesof
descalingsolution.
Donotopenhandlesdur
ingdescalingprocess.
10)
Pressanybuttononacoreunittostart
pumps.
Lettheentiresolutioninthetankrun
throughthesystem.
11) Afterwatertankisempty,pourdescal
ingsolutionfrombothcontainersback
intowatertank.
Citizservicemanual47
M A I N T E N A N C E
12)Placeemptycontainersbackoncup
supports.
13) Descaleagain:pressany
buttonona
coreunit
andwaituntilwatertankis
empty.
14)Emptycontainersandputthemback
oncupsupports.
15)Rinseandcleanwatertankthoroughly
andfillitwithfreshpotablewater.
16)Rinsecoffeemachinebypressingany
buttononfirstcoreunit.
17) Repeatprocedureonsecondcore
unitandwaituntilwatertankisempty.
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48
M A I N T E N A N C E
18) Pressbothcoffeebuttonssimultane
ouslyforatleast3 sectoenddescal
ingmode.
19) Repeatprocedureonsecondcoreunit
toenddescalingmode.
20) Removeandemptycontainers.
21) Switchoffcoffeemachine.
22) Emptyandcleancapsule/wastewater
containersanddriptray.
23) Cleancoffeemachinewithadamp
clothifnecessary.
Citizservicemanual49
T R O U B L E S H O O T I N G
7 T R O U B L E S H O O T I N G
7.1 Checklistforcoffeemachine(allmodels)
Afteraninitialinspec
tioninaccordance
withthischecklist,
errorsarequicklyfoundand
correctedwiththeappropri
atemeasure.
Therefore,adheretothe
sequenceofthechecklist.
Repaireveryoccurringerror
andworkthechecklist
throughuntilitiscompleted.
Check Errorsymptoms Measure/
repairwork
Furthermeasures/repair
work
1Checkthecoffee
machineforvisi
bledamage
1.1Housingpartsbro
kenordamaged
YESreplacehousingpartsif
necessary
NOcontinue
1.2Powercorddam
aged
YESreplacepowercord
NOconnectpowercordof
machinetothemainsandcon
tinue
2Checkmechani
calcomponents
2.1Cupsupportdoes
notremaininverti
calposition
YEScheckifthecapsuleand
wastewatercontainerarecor
rectlyinsertedandmounted
NOcontinue
YESreplacedamagedor
deformedcapsulecontainer
and/orwastewatercontainer.
2.2Cupsupportrattles
whenfoldeddown
YEScheckif2rubberstop
persaremountedonwaste
watercontainer
NOcontinue
NOreplacestoppers
2.3Closinghandle
malfunction
YESitisverydifficultor
almostimpossibletoclosethe
handleandtopressitallthe
waydown
NOcontinue
YESreplacethecompact
brewingunit
2.4Closinghandle
unusualnoisedur
ingactuation
YEScheckifdamperis
mountedunderneathclosing
handle
NOcontinue
NOreplacedamper
2.5Capsuleisnot
ejectedcorrectly
YESreplacebrewingunit
(TMBU)
NOcontinue
2.6Sealoncapsule
cageisdamaged
(checksealwith
yourfinger)
YESreplacebrewingunit
(TMBU)
NOcontinue
3Fillwatertank 3.1Watertankleaks YESreplacewatertank
NOcontinue
4ActivateOn/Off
switchtoperform
automaticselftest
4.1Coffeemachineis
notworking
(doesnotfunction)
a)YESpowercordisokay
(looseconnection)
YEScontinue
NOreplacepowercord
b)YESOn/Offswitchisokay YEScontinue
NOreplaceOn/Offswitch
c)YESpumpworks(pressa
coffeebutton)
YEScontinuewithpointf)
NOcontinuewithpointd)
d)YESbothcoffeebuttons
areworking
YEScontinue
NOreplaceelectroniccontrol
board
e)YESthermostatonpumpis
defective
YESreplacethermostat
NOreplacepump
f)YESfinewirefuse(s)
(167°C)onthermoblockdefec
tive
YESreplaceelectroniccon
trolboard,ifnecessaryreplace
thermoblock
NOcontinue
g)YESwiringisokay
NOcontinuewithpoint4.3
YESreplaceelectroniccon
trolboard
NOreplacedefectivecables
4.2Bothcoffeebuttons
areblinking3xfast
YESthermoblockishot
NOselftestokcontinue
YESreplaceNTCtempera
turesensor
NOreplacethermoblock
Citizservicemanual
50
T R O U B L E S H O O T I N G
5Measurecoffee
temperaturedur
ingpreparation
(seepage136)
5.1Nocoffee
YESa)watersystemisemptyYESreplaceselfpriming
device(APD)
NOcontinue
YESb)flowmeterblocked YEScleanorreplace
NOcontinue
YESc)pyramideplate
blocked
YESreplacethecompact
brewingunit
NOcontinue
YESd)coffeemachineiscal
cified
NOcontinue
YESdescalecoffeemachine
(seepage41)
5.2Temperatureistoo
low(below83°C)
YESdescalecoffeemachine
(seepage41)
NOcontinue
5.3Temperaturetoo
high(over89°C)
YESreplaceNTCtempera
turesensor
NOcontinue
6Checkforleakage
(seepage133)
andmeasureflow
rate(seepage
132)
6.1Compactbrewing
unitleaks
YESreplacecompactbrew
ingunit
NOcontinue
6.2Hoseconnections
leak
YESreplacedefectivehoses
andseals
NOcontinue
6.3Rateofflownotin
thestandardrange
YEScoffeemachineiscalci
fied
NOcontinuewithpoint9
YESdescalecoffeemachine
(seepage41)
NOreplacepump
7
Descalecoffee
machine
(ifnecessary)
7.1Coffeemachineis
calcified
YESdescalecoffeemachine
(seepage41)
NOcontinuewithpoint9
8Checkwatertank
contentsafterdes
calingandrinising
8.1Particlesofcalcium
andrustvisiblein
water
YESdescaleandrinsecoffee
machineagaintocleanwater
circuit
(seepage41)
NOcontinue
YESinformcustomertodes
calecoffeemachineperiodi
callyandtousespecifieddes
calingproductonly.
9Finalcleaning
(seepage38)
Noerrorsfoundaccordingto
checklist?
YESformoreinformation
pleasecontact
Nespresso
ServiceDivision
Endofchecklist
Check Errorsymptoms Measure/
repairwork
Furthermeasures/repair
work
Citizservicemanual51
T R O U B L E S H O O T I N G
7.2 Checklistformilkfrother
Themilkfrotherispart
oftheCitiz&milk
model.
Check Errorsymptoms Measure/
repairwork
Furthermeasures/repair
work
1Checkmilkfrother
andaccessoryfor
visibledamage
1.1Lid/sealbrokenor
damaged
YESreplacelid/seal
NOcontinue
1.2Insidecoatingof
jugbadlyscratched
YESreplacemilkfrotherin
agreementwithcustomer
NOcontinue
YESinformcustomerhowto
cleanmilkfrother
1.3Whisksbrokenor
damaged
YESreplacewhisks
NOcontinue
4Placemilkfrother
onplatformcon
nector.
Attachwhisk.
Switchoncoffee
machine.
Pressstartbutton
briefly(hotmilk
preparation).
4.1Milkfrotherisnot
working(doesnot
function)
YESa)coffeemachineis
heatingup
YEScontinue
NOcontinuewithchecklistfor
coffeemachine
YESb)connectoronplatform
isok(testitwithanothermilk
frother)
YESreplacemilkfrother
NOreplaceconnectoronplat
form(see page73)
4.2Abnormalnoise
duringpreparation
YESreplacemilkfrother
NOcontinue
4.3Milkfrotherdoes
notswitchoffauto
matically
YESreplacemilkfrother
NOcontinue
4.4Insideofjugstays
cold
YESreplacemilkfrother
NOcontinue
5Pressstartbutton
foratleast2sec
(coldmilkprepa
ration)
5.1Startbuttonisnot
backlightedinblue
YESreplacemilkfrother
6Finalcleaning
(seepage40)
Noerrorsfoundaccordingto
checklist?
YESformoreinformation
pleasecontact
Nespresso
ServiceDivision
Endofchecklist
Citizservicemanual
52
R E P A I R S
8 R E P A I R S
Theserepairinstructions
 arebasedonexplodeddrawingswithpositionnumberscombinedwithrepairand
mountingtips,
 presupposebasicknowledgeinrepairing
Nespresso
coffeemachines.
Asarule,identicalcomponents(e.g.pumps,thermoblocksetc.)are
presentedindetailonlyonce.
8.1 Safetyinstructions
8.2 Repairandmountingtips
Thesegeneraladvicesarecompletedwithspecificrepairtipsinthischapter.
Additionalinformation
Forcomponentsnotmentionedinthisrepairchapter,refertothechapters"Explosion
Drawings"onpage148and"PartsList"onpage154.
Snapconnections
Partsofthecaseandcomponentsofthecoffeemachineareconnectedscrewlesswith
latches.
Whenlooseningtheselatches,proceedwithcareandpatiencetoavoid
causinganydamage.
Thesidepanelsofthecoreunithavedelicatesnapconnectionsthatcanbrakeeasily.
Whenremovingthesesidepanels,usethespecialdisassemblytooland
procceedaccordingtothedisassemblyinstructions.
Screwconnections
Donotovertightenscrews.Plasticthreadsandinsertsaredelicate.
Observemax.torqueforthescrewconnectionsaccordingtothefollowingtable.
Riskoffatalelectricalshock!
Mainsvoltageinsidethecoffeemachine.
Disconnectthemainsplugbeforedisassemblythecoffeemachine
mustbefreeofvoltage.
Dangerofburns!
Hotpartsandwaterunderpressureinsidethecoffeemachine(ther
moblockinparticular).
Letcoffeemachinecooldownbeforedisassembly.
Citizservicemanual53
R E P A I R S
Screw/screwconnection Torque Position
Screwwithovalshapedhead50(+30/0)Ncm
0.5(+0.3/0)NmBottomofplatform
TX10screw(4x)/
brewingunit(TMBU)
50(+30/0)Ncm
0.5(+0.3/0)Nm
TX10screw/
thermoblocksupport(central)
150(+30/0)Ncm
1.5(+0.3/0)Nm
NTCfixationonthermoblock 80100Ncm
0.81.0Nm
TX20screw(2x)/
thermofusefixationsonther
moblock
150(+30/0)Ncm
1.5(+0.3/0)Nm
Citizservicemanual
54
R E P A I R S
Designationofspareparts
Thecomponentsinthefollowingillustrationsareindexedwithpositionnumbers.
Seeseparatesparepartslistforcorrespondingsparepartnumbers.
Distinguishbetweensparepartsofthedifferentmodelsandcoreunit
versions.
Electrostaticdischargeprotection
Wheninstallinganewelectroniccontrolboard,theservicetechnicianmustbeearthed
withagroundingband.
Wiringarrangement
Randomchangesinthewiringarrangementduringarepaircancause
 electromagneticinterferences,
 squeezedwires,
 insulationdefectsduetocontactwithhotparts,
 insulationproblemsiflowandhighvoltagewiresarenotseparated.
Protectivemeasures:
• Donotchangethecourseofinternalwiringduringrepair.
• Makesurethatwiresaredistantfromhotpartsuseexistingcableductsandclips.
Residualwater
• Ifitisnecessarytopulloffhosesfromcomponents,holdreadyasmallbeakerand
atoweltocollectandwipeawayleakingwater.
• Aspecialprocedureisnecessarytoemptythefluidsystemofthecoffeemachinefor
repairorshipment(referto"Emptywatersystem"onpage37).
TX20screw/
groundconnection(PE)onther
moblock
150(+30/0)Ncm
1.5(+0.3/0)Nm
Screw/screwconnection Torque Position
Citizservicemanual55
R E P A I R S
8.3 Toolsandaccessories
Withthefollowingassortmentoftools,allrepairsdescribedcanbemade:
Adynamometric
screwdriverwithsuit
ablebitsisrecom
mended.
1) Specialscrewdriverwithshortovalbit
(EFRno.0004872)
2) Shortovalbitonly
(EFRno.0004878)
3) Disassemblytool(forsidepanelsetc.)
(EFRno.0060611)
4) Repairing/serviceholderdevicefor
modelsCitizandCitiz&milk(availa
blefrom
Nespresso
)
5) Repairing/serviceholderdevicefor
modelCitiz&Co(availablefrom
Nes
presso
)
6) TORXscrewdriver(TX10,TX15)
7) Screwdriverwithapprox.4mmtooltip
8) HexagonalwrenchSW4
9) FlatwrenchSW14,10mmAF
10)Torquewrench
11)Longnosedpliers
12)Flatpliers
13)Beakerandtoweltocatchandwipe
awayleakingwater
Citizservicemanual
56
R E P A I R S
8.4 PlatformdisassemblymodelCitiz
8.4.1 Generaldisassembly
Thisgeneraldisassembly
 isnecessarybeforetheremoval/disassemblyofacoreunitispossible,
 givesaccesstothecomponentsandwiringoftheplatform.
• Takeawayallremovablepartsfromplatformandcoreunit
cupsupport(8)withwastewatercontainer(6)
capsulecontainer(7)
driptray(46)withdripgrid(49)
watertank(44)withcover(45).
Citizservicemanual57
R E P A I R S
• Loosen2screws(41,ovalshapedhead)atthebottomsideofplatform.
• Usescrewdrivertoreleaselatches.Startbyinsertingthesrewdriverintheopening
forthepowercord.
• Removebottomcover(51)byswingingituplikeshown.
Thebottomcover
(51)isinsertedinto
theplatformwithboth
edgesofitssmallend.Only
removebottomcoverby
swinginguptheroundend.
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Assemblycheckpoints
• Checkif2rubberstoppersaremountedonwastewatercontainer(6).
• Insertbottomcover(51)withsmallendintoplatformatfirst.Thenfolditdownand
closelatches.
Takecarenottojam
anywiresatthe
screwconnections.
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8.4.2 Replacingwatertankconnector
• Pulloffbothhosesfromwatertankconnector(53).
• Releasethe3latchesaroundthewatertankconnectoroneaftertheotherby
pressingthetopoftheirhooksoutwardswithascrewdriver(seedetail)andlifting
thewatertankconnectoratthesametime.
• Removegasket(a)fromwatertankconnector(53).
• Withthehelpofapairoftweezers,removeclampingring(b)andmetalsieve(c).
• Cleanorreplaceparts.
Thewatertankcon
nector(53)is
replacedtogether
withgasket,clampingring
andmetalsieve.
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Assemblycheckpoints
• Checkthatgasketisinsertedinwatertankconnector(53)correctly.
• Duringassemblyofthewatertankconnectorontheplatform,eachofits3latches
hastoengagewithanaudibleclick.
• Mindthedifferentdiametersofhosesforthewatertankconnector.
8.4.3 Replacingmainsswitch
• Removewatertankconnectorfromplatformfirst(seepage59).
• Removebothinsulatedfastonreceptaclesfrommainsswitch(54).
• Pressbladeofscrewdriverbetweenholderofmainsswitchandplatformcarefully.
Liftholderwithscrewdriverslightly.Thenpressholderwithmainsswitch(54)
inwardsuntilitcanberemoved.
Thehosescan
remainonthewater
tankconnector.
Useapairofflatpli
erstopulloffinsulat
ingsleevewithrecep
tacle.
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Assemblycheckpoints
• Usemarkedcableguidetolaywires.
• Themainsswitchholder(54)hasanotch:correctfittingpositioniswithmainsswitch
connectionsnexttotheplatform(seedetail).
• Duringassemblyofthewatertankconnector(53)ontheplatform,eachofits3
latcheshastoengagewithanaudibleclick.
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8.4.4 Replacingpowercord
• Removewatertankconnectorfromplatformfirst(seepage59).
• Removeinsulatedfastonreceptacleofphasewirefrommainsswitch(54).
• Disconnectadapterplugofneutralwire(15).
• Ifpresent,disconnectgroundwire(15,seedetail).
• Unlatchcablebracket(56)withscrewdriver.
Thehosescan
remainonthewater
tankconnector.
Useapairofflatpli
erstopulloffinsulat
ingsleevewithrecep
tacle.
Theflatreceptacleon
thegroundwirehasa
specialconnector
latching(seedetail).Press
downleveratfirst,thenpull
offreceptacle.
Thecablebracketis
undertension.There
fore,holdthecable
bracketwithyourfinger
whenunlatchingit.
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Assemblycheckpoints
Wiringwiththreecorepowercord: Wiringwithtwocorepowercord:
• Usemarkedcableguidestolaywires.
• Checkwiring(see"WiringdiagramsmodelCitiz"onpage118andfollowing).
• Duringassemblyofthewatertankconnector(53)ontheplatform,eachofits
3 latcheshastoengagewithanaudibleclick.
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R E P A I R S
8.4.5 Removingcoreunit
Payattentiontothefollowingsafetyadvicebeforeremovingthecoreunit.
Dangerofinsulationdamages(cuts)onwiresbetweencoreunitand
platform(phaseandneutralwire,groundwireifexisting).
Thesharpcasingedgesoftheplatform(markedredinaboveillustra
tion)candamagetheinsulationofwires.
Donotstretchandreciprocatewiresoversharpedgeswhileremoving
thecoreunit.
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• Loosen4screws(41,ovalshapedhead)atthebottomsideofplatform.
Forcompleteremovalofthecoreunitproceedasfollows:
• Removewatertankconnector(53)fromplatform(seepage59).
• Removeinsulatedfastonreceptacleofphasewire(15)frommainsswitch(54).
• Disconnectadapterplug(15)ofneutralwire.
• Ifpresent,disconnectgroundwire(15,partofthermoblockassembly).
Afterthisrepairstep
thecoreunitcanbe
pulledoutoftheplat
formslightly(withstillcon
nectedhosesandwires).
Nowthecoversofthecore
unitcanberemoved.
Thehosescan
remainonthewater
tankconnector.
Useapairofflatpliers
topulloffinsulating
sleevewithrecepta
cle.
Theflatreceptacleon
thegroundwirehasa
specialconnector
latching(seedetail).Press
downleveratfirst,thenpull
offreceptacle.
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R E P A I R S
Assemblycheckpoints
• Allcoversareassembledonthecoreunit.
• Checkthatwiringbetweencoreunitandplatformisledthroughcablefixation(71).
• Usemarkedcableguidestolaywiresinplatform(referto"Replacingpowercord"
onpage62andfollowing).
• Checkwiring(see"WiringdiagramsmodelCitiz"onpage118andfollowing).
• Duringassemblyofthewatertankconnector(53)ontheplatform,eachofits3
latcheshastoengagewithanaudibleclick.
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8.5 PlatformdisassemblymodelCitiz&milk
8.5.1 Generaldisassembly
Thisgeneraldisassembly
 isnecessarybeforetheremoval/disassemblyofacoreunitispossible,
 givesaccesstothecomponentsandwiringoftheplatform.
• Takeawayallremovablepartsfromplatformandcoreunit
cupsupport(8)withwastewatercontainer(6)
capsulecontainer(7)
driptray(48)withdripgrid(49)
watertank(44)withcover(45)
milkfrother(59)withlidandseal(62)
cupstorage(58)
whiskforhotmilk(60)
springwhiskformilkfoam(61).
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R E P A I R S
• Atthebottomsideofplatformloosen4screws(41,ovalshapedhead).
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R E P A I R S
• Insertscrewdriverintorecessesandswivelscrewdrivertoremovebottomcover
(51).
Latchesonthebot
tomcover(51)are
redcircledforeasy
identification.
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R E P A I R S
Assemblycheckpoints
• Checkif2rubberstoppersaremountedonwastewatercontainer(6).
Riskofdamage!
Whileassemblingtheprotectivecoverattheplatform,takecarenotto
jamanywiresatthescrewconnections.
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8.5.2 Replacingwatertankconnector
• Pulloffbothhosesfromwatertankconnector(53).
• Releasethe3latchesaroundthewatertankconnectoroneaftertheotherby
pressingthetopoftheirhooksoutwardswithascrewdriver(seedetail)andlifting
thewatertankconnectoratthesametime.
Thewatertankcon
nector(53)isreplaced
togetherwithgasket,
clampingringandmetal
sieve.
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R E P A I R S
1. Removegasket(a)fromwatertankconnector(53).
2. Withthehelpofapairoftweezers,removeclampingring(b)andmetalsieve(c).
3. Cleanorreplaceparts.
Assemblycheckpoints
• Checkthatgasketisinsertedinwatertankconnector(53)correctly.
• Duringassemblyofthewatertankconnectorontheplatform,eachofits3latches
hastoengagewithanaudibleclick.
• Mindthedifferentdiametersofhosesforthewatertankconnector.
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8.5.3 Replacingmilkfrotherconnector
• Remove3smallfastonreceptaclesfrommilkfrotherconnector(57).
• Removemilkfrotherconnector(57)byreleasing2latchesandswivelconnectorout
fromunderthehook.
Assemblycheckpoints
• Usemarkedcableguidestolaywires.
• Checkwiringofmilkfrotherconnector(57),seedetail.
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R E P A I R S
8.5.4 Replacingmainsswitch
• Remove4insulatedfastonreceptaclesfrommainsswitch(54).
• Pressbladeofscrewdriverbetweenholderofmainsswitchandplatformcarefully.
Liftholderwithscrewdriverslightly.Thenpressholderwithmainsswitch(54)
inwardstillitcanberemoved.
Assemblycheckpoints
• Themainsswitchholder(54)hasanotch(seedetail)toensureacorrectfittingposi
tion.
• Usemarkedcableguidestolaywires.
• Checkwiringofmainsswitch(see"WiringdiagramsmodelCitiz&milk,EF 485/
486"onpage124andfollowing).
Useapairofflatpli
erstopulloffinsulat
ingsleeveswith
receptacles.
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8.5.5 Replacingpowercord
• Remove2insulatedfastonreceptacles(55)frommainsswitch(54).
• Ifpresent,disconnectgroundwire(15,partofthermoblockassembly).
• Unlatchcablebracket(56)withscrewdriver.
Useapairofflatpli
erstopulloffinsulat
ingsleevewithrecep
tacle.
Thecounterpart,a
flatreceptacle,hasa
specialconnector
latching(seedetail).Press
downleveratfirst,thenpull
offreceptacle.
Thecablebracketis
undertension.There
fore,holdthecable
bracketwithyourfinger
whenunlatchingit.
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R E P A I R S
Assemblycheckpoints
• Usemarkedcableguidestolaywires.
• Checkwiringofpowercord(see"WiringdiagramsmodelCitiz&milk,EF 485/486"
onpage124andfollowing).
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8.5.6 Removingcoreunit
Payattentiontothefollowingsafetyadvicebeforeremovingthecoreunit.
Dangerofinsulationdamages(cuts)onwiresbetweencoreunitand
platform(phaseandneutralwire,groundwireifexisting).
Thesharpcasingedgesoftheplatform(markedredinaboveillustra
tion)candamagetheinsulationofwires.
Donotstretchandreciprocatewiresoversharpedgeswhileremoving
thecoreunit.
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R E P A I R S
• Loosen4screws(41,ovalshapedhead)atthebottomsideofplatform.
Forcompleteremovalofthecoreunitproceedasfollows:
• Removebottomcover(refertopage56).
• Removebothinsulatedfastonreceptacles(15,partofthermoblockassembly)from
mainsswitch(54).
Afterthisrepairstep
thecoreunitcanbe
pulledoutoftheplat
formslightly(withstillcon
nectedhosesandwires).
Nowthecoversofthecore
unitcanberemoved.
Useapairofflatpli
erstopulloffinsulat
ingsleevewithrecep
tacle.
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• Ifpresent,disconnectgroundwire(15,partofthermoblockassembly).
• Ifthethermoblockorcoreunithastobereplaced,disconnectmilkfrotherconnector
(57).Otherwisethecoreunitcanberemovedtogetherwiththisconnector(seepage
73).
• Removewatertankconnector(53,seepage71).
Assemblycheckpoints
• Allcoversareassembledonthecoreunit.
• Checkthatwiringbetweencoreunitandplatformisledthroughcablefixation(71).
• Usemarkedcableguidestolaywires.
• Checkwiringofmilkfrotherconnector(57),seedetail.
• Checkwiringofmainsswitch(54),see"WiringdiagramsmodelCitiz&milk,
EF 485/486"onpage124andfollowing.
• Duringassemblyofthewatertankconnector(53)ontheplatform,eachofits3
latcheshastoengagewithanaudibleclick.
Theflatreceptacleon
thegroundwirehasa
specialconnector
latching(seedetail).Press
downleveratfirst,thenpull
offreceptacle.
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8.6 PlatformdisassemblymodelCitiz&Co
8.6.1 Generaldisassembly
Thisgeneraldisassembly
 isnecessarybeforetheremoval/disassemblyofoneorbothcoreunitsispossible,
 givesaccesstothecomponentsandwiringoftheplatform.
• Takeawayallremovablepartsfromplatformandcoreunits
cupsupports(8)withwastewatercontainers(6)
capsulecontainers(7)
driptray(48)withdripgrid(49)
watertank(44)withcover(45).
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• Atthebottomsideofplatformloosen9screws(41,ovalshapedhead). Thecoreunitsare
fastenedwithsomeof
thesescrewsaswell.
Supportbothcoreunitsso
thattheirremainingscrew
connectiontotheplatform
cannotbedamaged.
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• Ifnecessaryuseascrewdrivertoremoveprotectivecover(51).
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Assemblycheckpoints
• Checkif2rubberstoppersaremountedoneachwastewatercontainer(6).
Riskofdamage!
Whileassemblingtheprotectivecoverattheplatform,takecarenotto
jamanywiresatthescrewconnections.
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8.6.2 Replacingwatertankconnector
• Pulloffbothhoses(63,64)fromwatertankconnector(53).
• Releasethe3latchesoneaftertheotherbypressingthetopoftheirhooksoutwards
withascrewdriver(seedetail)andliftingthewatertankconnectoratthesametime.
• Removegasket(a)fromwatertankconnector(53).
• Withthehelpofapairoftweezers,removeclampingring(b)andmetalsieve(c).
• Cleanorreplaceparts.
Thewatertankcon
nector(53)isreplaced
togetherwithgasket,
clampingringandmetal
sieve.
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Assemblycheckpoints
• Duringassemblyofthewatertankconnector(53)ontheplatform,eachofits3
latcheshastoengagewithanaudibleclick.
• Insertgasketcorrectly(seedetail).
8.6.3 Replacingmainsswitch
• Remove2insulatedfastonreceptaclesfrommainsswitch(54).
• Pressbladeofscrewdriverbetweenholderofmainsswitchandplatformcarefully.
Liftholderwithscrewdriverslightly.Thenpressholderwithmainsswitch(54)
inwardstillitcanberemoved.
Useapairofflatpli
erstopulloffinsulat
ingsleeveswith
receptacles.
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Assemblycheckpoints
• Usemarkedcableguidestolaywires.
• Themainsswitchholder(54)hasanotch:correctfittingpositioniswithmainsswitch
connectionsnexttotheplatform(seedetail).
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8.6.4 Replacingpowercord
• Removeinsulatedfastonreceptacleofphasewire(55)frommainsswitch(54).
• Disconnectbothinsulatedadapterplugsofneutralwire(55).
• Ifagroundwireispresent,disconnectbothflatreceptacles(15).
• Unlatchcablebracket(56)withscrewdriver.
Useapairofflatpli
erstopulloffinsulat
ingsleevewithrecep
tacle.
Theflatreceptacles
ofthegroundwire
connections(15)
haveaspecialconnector
latching(seedetail).Press
downleveratfirst,thenpull
offreceptacle.
Thecablebracketis
undertension.There
fore,holdthecable
bracketwithyourfinger
whenunlatchingit.
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Assemblycheckpoints
• Usemarkedcableguidestolaywires.
• Checkwiringofpowercord(see"WiringdiagramsmodelCitiz&Co,EF487/488"
onpage128andfollowing).
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8.6.5 Removingcoreunits
• Foreachcoreunitloosen1remainingscrew(41,ovalshapedhead)atthebottom
sideofplatform.
Forcompleteremovalofacoreunitproceedasfollows:
4. Disconnect2insulatedadapterplugs(15,phaseandneutralwire).
5. Ifagroundwire(15,partofthermoblock)ispresent,disconnectflatreceptacle.
6. Openprotectivecase(69)withscrewdriveranddisconnectconnectioncable(b).
7. Pulloutcoreunitfromplatformslightlytodisconnectsynchronizationcableplug(a)
fromelectroniccontrolboard.
8. PulloffbothhosesfromangledHconnector(65).
9. Liftcoreunitoutofplatform.
Bothcoreunitscan
beremovedthesame
way.
Afterthefirstrepair
stepthecoreunitcan
bepulledoutofthe
platformslightly(withstill
connectedhosesand
wires).Nowthecoversof
thecoreunitcanbe
removed.
Theflatreceptacleon
thegroundwirehasa
specialconnector
latching(seedetail).Press
downleveratfirst,thenpull
offreceptacle.
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Assemblycheckpoints
• Allcoversareassembledonthecoreunit.
• Usemarkedcableguidestolaywires.
• Checkwiring(see"WiringdiagramsmodelCitiz&Co,EF487/488"onpage128
andfollowing).
• Makesuretoreconnectsynchronizationcableplugs(a)onelectroniccontrolboards.
• MindthehosepositionsonangledHconnector(65).
• Checkthatwiringbetweencoreunitsandplatformisledthroughcablefixations(71).
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8.7 Disassemblyofcoreunit,Crange
8.7.1 Generaldisassembly
Thecoreunithastoberemovedfromtheplatformatfirst(seeaccordingchapter"plat
formdisassembly").Itispossibletoperformageneraldisassemblyofthecoreunitwith
intacthoseandwireconnectionstotheplatform(e.g.forrepair,leakagecheck).
Removeleftsidepanel
1. Insertdisassemblytoolbetweenbottomofleftsidepanel(3)andchassis(1).
2. Swiveldisassemblytooltilllatchopensatthebottom.
3. Insertdisassemblytoolintolowergapatthefront.
4. Carefullyturndisassemblytoolslightlytotherighttoopenthelatch.
Aftergeneraldisas
semblyofthecore
unitarepairing/
serviceholderdeviceis
helpfulforfurtherrepair
work.
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5. Insertdisassemblytoollaterallyintothegapabove.
6. Carefullyturndisassemblytoolslightlyforwardtoopenthenextlatch.
7. Movedisassemblytoolupwardsandopenremaininglatchthesameway.
8. Atthebackinsertdisassemblytoolintoshadowgapofleftsidepanel.
9. Swiveldisassemblytoolcarefullytoopenfirstlatch.
10. Movedisassemblytoolupwardsandopentheothertwolatchesthesameway.
Insertdisassembly
toolatrightangles
only.Otherwisethe
shadowgapcanbedam
aged.
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11. Swingupandremoveleftsidepanel.
Removerightsidepanel
Removetherightsidepanel(4)inthesamesequenceasfortheleftsidepanel(3).
Removeblind
1. Open2latchesoneachsideofblind(9)withscrewdriver.
2. Removeblindtogetherwithcoffeebuttonsandwiring.
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Removecover
1. Useascrewdrivertorelease2latchesoneachside.
2. Liftandremovecover(2).
Removefrontcoverwithoutlet
1. Release3latchesonfrontcoverbyhandandpressoutoutlet(5,seedetail).
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Assemblycheckpoints
• Foreasyidentification,thesidepanelsaremarkedwith"RIGHT"or"LEFT"onthe
inside.
• Checkifdamper(10)forclosinghandleisinstalledoncover(2).
• Checkthatallconnectionwirestotheplatformareledthroughcablefixation(71).
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8.7.2 Replacingcompactbrewingunit
• Useapairofpointedplierstoremoveconnectorclip(34)andhose(29)withOring
(36).
• UseTorxscrewdriverTX10toloosen4screws(40).
• Afterremovalofcompactbrewingunit(14),release2latcheswithscrewdriverand
removesteamcover(13).
Openclosinghandle
togetaccesstohose
connection.
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Assemblycheckpoints
• Atfirstassemblesteamcover(13)onnewcompactbrewingunit(14)asshown.
• ReplaceOring(36)ofhoseconnectiononcompactbrewingunit.
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8.7.3 Replacingpump
General
Thepump(18)canonlybereplacedasassemblyconsistingof
 pump,prewiredwiththermostat(19,seebelow)orthermalcutofffuse(a)
 2pumpsupports(21,22)
 pumpcover(25).
Ablownthermalcutofffuse(a)hastobereplacedtogetherwiththepumpassembly.
Atrippedthermostat(19)resetsafterabout30minautomatically.
Thepumpis
equippedeitherwith
athermalcutofffuse
orathermostatdepending
onthevoltagerangeor
manufacturer.
a) Thermalcutofffuse 19)Thermostatwithretainingclip
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Replacingpumpassembly
• Removebothhoses(28,32)frompump.Useapairofpointedplierstoremove
connectorclip(35)withOring(36).
• Removecover(43)fromelectroniccontrolboardanddisconnect2fastonrecepta
clesofpumpwires.
• Pulloutsupports(21,22)togetherwithcompletepumpassembly.
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Assemblycheckpoints
• Adjustpositionofpumpconnector(23)towardshose(28)ifnecessary.
• Checkconditionofsupports(21,22).Replacebrittlesupports.
• Passhose(28)frompumptoselfprimingdevicethroughlugonpumpcover(25).
• Useacableclamp(a)tofixpumpwires(differentlocationdependingonthermo
fuse/thermostat).
ThewhiteplasticIid
onthepumpisrotata
bleandhasasquare
seatfortheforkwrench.
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8.7.4 Replacingflowmeter
Assemblycheckpoint
• Layconnectioncabletoflowmeter(27)inbracket.
• Mindthehosepositionsontheflowmeter.
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8.7.5 Replacingautomaticprimingdevice(APD)
• Useapairofpointedplierstoremoveconnectorclips(34,35)fromautomatic
primingdevice(26).
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Assemblycheckpoints
• ReplacebothOrings(36)togetherwithautomaticprimingdevice(26).
• Inserthose(28)intubeguiding(30).
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8.7.6 ReplacingthermoblockwithNTCsensorandfine
wirefuse(s)
Adefectthermoblockcanonlybereplacedwithanassemblyconsistingof
 thermoblock,prewiredwithNTCtemperaturesensor,finewirefuse(s)andground
wire(onlyifrequired),
 thermoblocksupport.
• UseTorxscrewdriverTX10toloosenscrew(40).
• Release3latchesandpulloutsupportwiththermoblockassembly(15).
Dependingon
nationalregulations,
oneortwofinewire
fusesaremountedonthe
thermoblock(see“Wiring
diagrams”onpage 118
andfollowing).
DonotstressNTC
cablewhenremov
ingsupport.
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ReplacingNTCtemperaturesensor
• UnplugNTCsensorcablefromelectriccontrolboard(42)first.
• TestNTCtemperaturesensor(39),see“NTCtemperaturesensorfunctionality”on
page 139.
AssemblycheckpointNTCtemperaturesensor
• TightenthenewNTCtemperaturesensor(39)andspringringwithatorquewrench
(80100Ncm).
Replacingfinewirefuse(s)
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R E P A I R S
Assemblycheckpointsfinewirefuse(s)
• Whenmountingasafetyclip(a)onthethermoblock(15),makesurethatthehousing
ofthefinewirefuse(b)ispositionedexactlybelowthesafetyclip.
• Tightenfasteningscrewandspringringwithatorquewrench(150(+30/0)Ncm).
Assemblycheckpointsthermoblock
• Allwiresfromthermoblocktoplatformmustbeledthroughthebracket(a)atthe
bottomofthesupport.
• Theblackgrommets(b)ontheelectricalthermoblockconnectionsareslittedatthe
end.IfanangledFastonreceptacle(c)isused,makesurethatitswirerunsthrough
thisslit.
• Tightencentralfasteningscrew(d)withatorquewrench(150(+30/0)Ncm).
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8.7.7 Replacingelectroniccontrolboardwithbuttonprints
• Removeatfirst
NTCconnectorfromelectroniccontrolboard,
connectorcablefromflowmeter,
electroniclid(43),
fastonreceptaclesfromelectroniccontrolboard.
• Inserttipofscrewdriverbetweenchassis(1)andprotectivecaseofelectroniccontrol
board(42)toreleaselatches.Thenpulloutassembly.
Thereplacement
boardisequipped
withprotectivehous
ingandcover.
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R E P A I R S
Replacingbuttonprints/coffeebuttons
Assemblycheckpoints
• Afterassemblychecktheplugarrangementoftheelectroniccontrolboard(see
“Wiringdiagrams”onpage 118andfollowing.
• Layconnectionwirestobuttonprintsinbracketsandcableguidelikeshown.
Forinstallingand
connectinganew
electroniccontrol
board,theservicetechni
cianmustbeearthedwith
agroundingband.
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8.8 Disassemblyofcoreunit,Drange
8.8.1 Generaldisassembly
Thecoreunithastoberemovedfromtheplatformatfirst(seeaccordingchapter"plat
formdisassembly").Itispossibletoperformageneraldisassemblyofthecoreunitwith
intacthoseandwireconnectionstotheplatform(forrepair,leakagechecketc.).
Removeoutlet
1. Openclosinghandle.
2. Pressoutlet(5)sidewardsbyhandcarefully.
3. Insertdisassemblytoolintogapbetweenoutletandrightsidepanel(4).
Aftergeneraldisas
semblyofthecore
unitarepairing/serv
iceholderdeviceishelpful
forfurtherrepairwork.
Thedisassemblytool
isnecessaryfor
removingoutletand
sidepanelsundamaged.
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R E P A I R S
4. Holdandpulloutlet.
5. Atthesametimemovedisassemblytoolupwards.
6. Carefullyturndisassemblytoolslightlybackwardtoopenthelatch.
7. Insertdisassemblytoolintogapontheothersideoftheoutlet.
8. Movedisassemblytoolupwardsandcarefullyturnitslightlybackwardtoopenthe
latch.
9. Removeoutlet.
Removerightsidepanel
10. Insertdisassemblytoolbetweenbottomofrightsidepanel(4)andchassis.
11. Swiveldisassemblytooltillsnapconnectionatthefrontopens.
12. Relocatedisassemblytoolandrepeatproceduretoopenlatchatthebottomofthe
sidepanel.
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13. Insertdisassemblytoollaterallyintogapatthefront.
14. Carefullyturndisassemblytoolslightlyforwardtoopenthefirstlatch.
15. Movedisassemblytoolupwardsandopentheothertwolatchesthesameway.
16. Atthebackinsertdisassemblytoolintoshadowgapofrightsidepanel.
17. Swiveldisassemblytoolcarefullytoopenfirstlatch.
18. Movedisassemblytoolupwardsandrepeatprocedurefortheother2latches.
Insertdisassembly
toolatrightangles
only.Otherwisethe
shadowgapcanbedam
aged.
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R E P A I R S
19. Swingupandremoverightsidepanel.
Removeleftsidepanel
20. Insertdisassemblytoolbetweenbottomofleftsidepanel(3)andchassis.
21. Swiveldisassemblytooltilllatchatthefrontopens.
22. Relocatedisassemblytoolandrepeatproceduretoopenlatchatthebottomofthe
sidepanel.
Closinghandlemust
beopened.
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23. Insertdisassemblytoollaterallyintogapatthefront.
24. Carefullyturndisassemblytoolslightlyforwardtoopenthefirstlatch.
25. Movedisassemblytoolupwardsandopentheothertwolatchesthesameway.
26. Atthebackinsertdisassemblytoolintoshadowgapofleftsidepanel.
27. Swiveldisassemblytoolcarefullytoopenfirstlatch.
28. Movedisassemblytoolupwardsandrepeatprocedurefortheother2latches.
Insertdisassembly
toolatrightangles
only.Otherwisethe
shadowgapcanbedam
aged.
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R E P A I R S
29. Swingupandremoveleftsidepanel.
Removecover(2)
1. Removebothcoffeebuttons(11,12)andprints(42)outofholder.
2. Removewiringofcoffeebuttonprintsfromcableguides.
Closinghandle
shouldbeopened.
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R E P A I R S
3. Useascrewdrivertorelease4latches.
4. Openclosinghandle.
5. Liftandremovecover(2).
Assemblycheckpoints
• Checkifdamper(10)forclosinghandleisinstalledoncover(2).
• Forcorrectlayoutofthewirestothecoffeebuttonprints,see“Replacingelectronic
controlboardwithbuttonprints”onpage 116.
• Assembleleftsidepanel(3)first.
• Insertrightsidepanel(4)intohingesatthetopoftheleftsidepanel.Thenfolddown
rightsidepanelandclicklatches.
• Checkthatalllatchesareengaged.
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R E P A I R S
8.8.2
Replacingelectroniccontrolboardwithbuttonprints
• Refertopage114forremovingcover(2).
Thereplacement
board(42)is
equippedwithprotec
tivehousingandcover.
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R E P A I R S
• Removefirst
NTCconnectorfromelectroniccontrolboard,
connectorcablefromflowmeter,
electroniclid(43),
fastonreceptaclesfromelectroniccontrolboard.
• Inserttipofscrewdriverbetweenchassis(1)andprotectivecaseofelectroniccontrol
board(42)toreleaselatches.Thenpulloutassembly.
Assemblycheckpoints
• Theleftandrightbuttonprints(42)aremarkedwith"L"or"R"foreasyidentification.
• Afterassemblychecktheplugarrangementofthemainboard(see“Wiring
diagrams”onpage 118andfollowing).
• Layconnectionwirestobuttonprintsinbracketsandcableguideslikeshown.
Forinstallingand
connectinganew
electroniccontrol
board,theservicetechni
cianmustbeearthedwith
agroundingband.
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R E P A I R S
8.9 Wiringdiagrams
8.9.1 WiringdiagramsmodelCitiz
Wiringdiagram220V240VIECmodelCitiz,EF483/484
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R E P A I R S
Wiringdiagram120VUL(USA/Canada)modelCitiz,EF483/484
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R E P A I R S
Wiringdiagram120V127VIEC(Brazil)modelCitiz,EF483/484
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R E P A I R S
Wiringdiagram120V127VIEC(Mexico)modelCitiz,EF483/484
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122
R E P A I R S
Wiringdiagram110VIEC(Taiwan)modelCitiz,EF483/484
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R E P A I R S
Wiringdiagram100VIEC(Japan)modelCitiz,EF483/484
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124
R E P A I R S
8.9.2 WiringdiagramsmodelCitiz&milk,EF 485/486
Wiringdiagram220V240VIECmodelCitiz&milk,EF 485/486
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R E P A I R S
Wiringdiagram120VUL(USA/Canada)modelCitiz&milk,EF 485/
486
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126
R E P A I R S
Wiringdiagram120V127VIEC(Brazil)modelCitiz&milk,EF 485/
486
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R E P A I R S
Wiringdiagram120V127VIEC(Mexico)modelCitiz&milk,
EF 485/486
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128
R E P A I R S
8.9.3 WiringdiagramsmodelCitiz&Co,EF487/488
Wiringdiagram220V240VIECcoreunit,modelCitiz&Co,EF487/488
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R E P A I R S
Wiringdiagram220V240VIECmodelCitiz&Co,EF487/488
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F U N C T I O N  T E S T S
9 F U N C T I O N  T E S T S
9.1 Safetyinstructions
Somefunctiontestsareperformedwithanenergized,partlyopenedcoffeemachine.
9.2 Requiredequipment
9.2.1 Overview
Tosimplifymatters,
themodelCitizwith
coreunit"Crange"is
usedtoexemplifythrough
outthischapter.
Dangerofelectrocution!
Mainsvoltageinsidethecoffeemachine.
Donottouchanylivepartwhileperformingtests.
Dangerofburns!
Hotpartsandwaterunderpressureinsidethecoffeemachine.
Donottouchanyhotpartswhilecheckingforleakages!
Alwayswearprotectivegoggles.
Symbolicillustration
offunctiontestequip
ment.
1) Pressuregauge
(EFRno.16195)
2) Citizpressuregaugeadapter
3) Digitalmultimeter
(forNTCtemperaturesensortest)
4) Electronicthermometer
(ordigitalmultimetersuitablefortemper
aturemeasurement)
5) Timer
6) Measuringbeaker
7) Testequipmentforprotectiveearthcon
tinuitytestandprotectiveinsulationtest
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F U N C T I O N  T E S T S
9.2.2 Citizpressuregaugeadapter
ThispressuregaugeadapterisdesignedfortheCitizcoffeemachines.
Thepressuregaugeadapterhas2parts:
• Aconnectingunit(3)withasealingconethatisinsertedinthecapsulecageofthe
brewingunit.
• Ahandactuatedfixationunit(4)tolockandsealthecompletepressuregauge
adapterinthebrewingunit.
1) Quickactioncouplingforpressure
hose
2) Operatinglever
3) Connectingunit
4) Fixationunit
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F U N C T I O N  T E S T S
9.3 Measureflowrate
Thepressureadapter
mustsitfirmlyinthe
capsulebay.
1) Fillandinsertwatertank.
2) Openclosinghandle.
3) Insertconnectingunitofpressure
adapterintocapsulebay.Pushback
sealingconeintocapsulecage.
4) Insertfixationunitofpressureadapter
intocapsulebay.
5) Pressdownoperatinglever.
6) Connectpressurehosetopressure
tester.
7) Placeameasuringcupunderthedrain
hoseofthepressuretester.
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9.4 Pressureandleakagechecks
Checkthefollowingpartsofthecoffeemachineforleakages:
• Compactbrewingunit
• Hoseconnections
• Thermoblock
• Pump
• Selfprimingdevice
8) Switchoncoffeemachine.
9) Afterheatingup,pressthe"smallcup"
button.
10)Openthevalveuntilwaterbeginsto
flow.
11)Closethevalveuntilthepressure
gaugeindicates12bar.
Constantlymonitorthepressure
gaugeandifrequiredreadjustthe
valve.Asthetemperature
increases,sodoesthepressure,
readjustthepressureto12bar
whenrequired.
12)Carryoutmeasurementforapprox.
30 sec.
13)Controlmeasuringcup:atleast60
120 mlofwatermustbeinthemeasur
ingcup.
14)Openthevalveandletwaterflowout
ofthepressuretester.
Notices:
• Should<60mlleakout,thenthepump
isdefectiveorthereisaleakinthe
watersystem.
• Largedeviationsinindicatedpressure
whilemeasuring(±4bar)meansthat
thepumpisdefective.
Dangerousmainsvoltageinsidethecoffeemachine!
Donottouchanypartsundervoltagewhilecheckingforleakages!
Dangeroushotpartsunderpressureinsidethecoffeemachine!
Donottouchanyhot/pressurizedpartswhilecheckingforleakages!
Alwayswearprotectivegoggles.
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9.4.1 Preparations
Dependingoncore
unitrange,referto
"Disassemblyofcore
unit,Crange"onpage91
or"Disassemblyofcore
unit,Drange"onpage109.
Thepressureadapter
mustsitfirmlyinthe
capsulebay.
1) Removeleftsidepanelofcoreunit.
2) Insertcoreunitbackintoplatform.
3) Fillandinsertwatertank.
4) Insertconnectingunitofpressure
adapterintocapsulebay.Pushback
sealingconeintocapsulecage.
5) Insertfixationunitofpressureadapter
intocapsulebay.
6) Pressdownoperatinglever.
7) Connectpressurehosetopressure
tester.
8) Placeameasuringcupunderthedrain
hoseofthepressuretester.
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9.4.2 Testrun
9) Connectmainscable.
10)Switchoncoffeemachine.
11)Afterheatingup,pressthe"smallcup"
button.
12)Openthevalveandletthewaterflow
forapproximately10secoutofthe
drainhose.
13)Closethevalvecompletely.Thepres
surestabilizesafterincreasingbriefly
between1619 bar(pressurecheck).
Thepressureincreasesslowlywith
increasingtemperature.Shouldthe
pressureexceed23bar,switchoff
thecoffeemachineandreleasethe
pressurebyopeningthevalve.
Forbettervisibility
useaflashlight.
14)Checkallconnectionsunderpressure
foraudibleandvisibleleaks.
Donotrunthepumpformore
than50secwiththevalveclosed.
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9.5 Measurecoffeetemperature
15) Switchoffthecoffeemachine.
16) Openthevalveandletwaterflowout
ofthepressuretester.
1) Switchoncoffeemachine.
2) Placeameasuringcuponcupsup
port.
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3) Afterheatingup,pressthe"smallcup"
buttonforapproximately10sectopre
heatthecoffeeoutletwithhotwater.
4) Emptymeasuringcupandplaceit
backoncupsupport.
5) Insertcapsule(Cosiisbestsuited).
6) Pressthe"smallcup"buttonagain.
7) Waituntilthemeasuringcupcontains
20mlofcoffee.
8) Thenmeasurethecoffeetemperature
approx.510 mmunderthecoffeeout
let.
Thecoffeetemperatureshouldbe
86 °C±3°C(187°F±5.4°F).
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F U N C T I O N  T E S T S
9.6 Milkfrothertests
Prerequisite
UsenewlyopenedUHT,fullfatorsemiskimmedmilkatfridgetemperature(+ 8 °Ctill
+ 10 °C)forthefollowingtestsonly.
9.6.1 Measurehotmilktemperature
• Prepare240mlhotmilkinmilkfrother(usemixerwithoutspring).
• Measuretemperatureimmediatelyafterpreparationinjug.
Themilktemperatureshouldbebetween+60°Cand+70°C(140°Ftill158 °F).
9.6.2 Measuremilkfrothratio
• Preparecoldmilkfrothoutof120mlmilkinmilkfrother(usewhiskwithspring).
• Emptycontentofmilkfrotherintomeasuringbeaker.
• Determinetheratiox[%]ofmilkfrothtoliquidmilkwithfollowingformula:
Approximatevalues:
directafterpreparation .....................................................................................x=250
60secafterpreparation ....................................................................................x=190
Thedisregardofthis
specificationcan
affectthemeasuring
results.
Spatteredmilkmay
causeburns.Only
usemilkfrother
withlid.
xH
2
 H
1
H
1
 100 ´ =
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F U N C T I O N  T E S T S
9.7 NTCtemperaturesensorfunctionality
TheresistanceoftheNTCtemperaturesensormustbewithinadefinedrange,other
wisethetemperatureregulationwillnotworkproperlyandthecoffeemachinewillstay/
gointofailuremode.
AneasywaytocheckthefunctionalityoftheNTCtemperaturesensoristomeasurethe
ohmicresistanceatambienttemperature.Withthismeasurement,mostdefectNTC
temperaturesensorscanbedetected.
Avoidcontamination
ofsensorcontactsur
faceduringhandling.
1) UnplugNTCtemperaturesensorfrom
electroniccontrolboard.
2) RemoveNTCtemperaturesensor
fromthermoblock(refertopage104
andfollowing).
3) Measuretemperatureofsensorbody
(donottoucheithertemperatureor
NTCsensorbyhand).
4) MeasureresistanceofNTCtempera
turesensorbyconnectingamultime
terattheplug.
5) Comparemeasuringvalueswithfol
lowingdiagramortable.
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F U N C T I O N  T E S T S
NTCDiagram
NTCtemperaturesensor,R/Tcharacteristics
Graph1 ........................................................................................ max.resistancevalue
Graph2 ......................................................................................... min.resistancevalue
Measurementtable
NTCtemperature
[°C]
NTCtemperature
[°F]
NTCmin.resistance
[kOhm]
NTCmax.resistance
[kOhm]
15 59 155.63 168.48
20 68 122.41 131.23
25 77 97.00 103.00
30 86 76.63 82.12
35 95 60.90 65.86
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9.8 Protectiveearth(PE)continuitytest
9.8.1 Whatcoffeemachinehastobetestedandwhen?
Thistestisonlynecessary
 forclass1equipment(threewirepowercordwithprotectiveearth)
 formodelsCitiz&milk,EF485/486
 afterarepairwheneverageneraldisassemblyoftheplatformand/orcoreunitwas
performed.
9.8.2 General
Legalregulation
Incaseofarepair/modificationofthecoffeemachine,therepaircentreisboundbylaw
toprotecttheuser/consumerby
 restoringtheregularconditionoftheapplianceand
 performingtherespectivetestsaccordingtoEN/IEC603351“Safetyofhousehold
andsimilarelectricalappliances”andnationalregulations(e.g.DINVDE0701).
Description
Protectiveearthcontinuitymeasurementsaremadebetweentheprotectiveearth
terminalandconductive,touchablepartsofthecoffeemachinewheredangerous
voltagecouldoccurifthebasicinsulationwastofail.
Thistestassuresthat
 theground(earth)connectiondoesnothaveaninterruptionbetweentheplugand
touchable,conductivehousingparts
 thepermissiblegroundresistanceofthoseconductive,touchablepartsislessthan
0.3Ohms(withatestcurrentof200mADC).
Testequipment
Specialtestequipmentisneededthatcomplieswiththeregulationstoperformprotec
tiveearthcontinuitymeasurements.Detailedrequirementsandtolerancesmustbeveri
fiedbyyourlocalauthoritiesormeasurementsupplierinanycase.
Testreport
Forlegalreasonsarepairortestreportshouldbepreparedandfiledwithfollowinginfor
mation
 customer(name,address)
 typeandserialnumberofcoffeemachine
 dateofrepair/test(s)
 performedtest(s)/measuringvalue(s)
 usedtestequipment
 signature
Ask
Nespresso
for
recommendations
abouttestequipment.
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F U N C T I O N  T E S T S
9.8.3 Testsequence
Thistestsequenceis
notapplicableforcof
feemachineswith
twowirepowercords(with
outgroundpin).
Dangerofelectrocution!
Donotpluginthecoffeemachineduringtheprotectiveearthcontinuity
test.
Readandobservesafetyinstructionsinusermanualoftestequipment.
1) Connectblackmeasuringcableto
groundpinofpowerplugwithanalli
gatorclip(exampleshown:Swiss
powerplug).
Symbolicillustration
oftestequipment.
2) Switchontestequipmentandselect
protectiveearthcontinuitytest.
Thecoffeemachine
Citiz&Cohas2test
holestocheckboth
thermoblocks.
TestholesonbottomofCitiz/Citiz&milk/Citiz&Coplatforms
3) Inserttipofredtestprobeintesthole
andtouchthermoblock.
4) Press"measure"buttonandreadoff
displayedresistance.
Theresistancemustbelowerthan
0.3 Ohm.
5) Fillinmeasuredvalue(s)inatest
report.
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F U N C T I O N  T E S T S
9.8.4 Whattodoiftheprotectiveearthcontinuitytestfails
• Check/measuregroundconnectioninplatform(refertopage75).
• Check/measuregroundconnectiononmilkfrotherconnector(refertopage73and
page124forwiringdiagram).Replacemilkfrotherconnectorifnecessary.
• Cleangroundcontactonmilkfrother.Measureresistancebetweengroundcontact
andjugofmilkfrother.Replacemilkfrotherifnecessary.
Donotdamage
insidecoatingof
milkfrotherjugwith
theprobetip.
Additionaltestforcoffeemachine
Citiz&milk:
1) Touchuppermetallicpartofmilk
frotherwithredtestprobe.
2) Press"measure"buttonandreadoff
displayedresistance.
3) Repeatmeasurementonanother
metallicspotofmilkfrotherforverifica
tion.
Theresistancemustbelowerthan
0.3 Ohm.
4) Fillinmeasuredvalue(s)inatest
report.
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F U N C T I O N  T E S T S
9.9 Protectiveinsulationtest
9.9.1 Whatcoffeemachineshavetobetestedandwhen?
Thistestisnecessary
 forclass1and2equipment(with/withoutprotectiveearth)
 afterarepairwheneverageneraldisassemblyoftheplatformand/orcoreunitwas
performed.
9.9.2 General
Legalregulation
Incaseofarepair/modificationofthecoffeemachine,therepaircentreisboundbylaw
toprotecttheuser/consumerby
 restoringtheregularconditionoftheapplianceand
 performingtherespectivetestsaccordingtoEN/IEC603351“Safetyofhousehold
andsimilarelectricalappliances”andnationalregulations(e.g.DINVDE0701).
Description
Theinsulationtest
 assuresthatwiringandinsulationofthecoffeemachinefullfillthenormativerequire
mentsafterarepair,
 ratestheinsulationcapabilityofthecoffeemachine,
 isaverydangeroustestbecauseofahightestvoltage(500VDC).
Fortheinsulationtest,phaseandneutralwireareshuntedatthepowerplug.Thena
testvoltageisappliedbetweenphase/neutralandselectedpartsofthecoffeemachine.
Testequipment
Specialtestequipmentisneededthatcomplieswiththeregulationstoperforminsula
tionandwithstandingvoltagetests.Detailedrequirementsandtolerancesmustbeveri
fiedwithyourlocalauthoritiesormeasurementsupplierinanycase.
Ideallythetestequipmenthasanationalpowersocketfortesting,sothatthecoffee
machinecanpluggedindirectly.Otherwiseaspecialshuntisnecessarytoconnectthe
phaseandneutralpinofthecoffeemachine’spowerplug.
Testreport
Forlegalreasonsarepairortestreportshouldbepreparedandfiledwithfollowinginfor
mation
 customer(name,address)
 typeandserialnumberofcoffeemachine
 dateofrepair/test(s)
 performedtest(s)/measuringvalue(s),testpoints
 usedtestequipment
 signature
Ask
Nespresso
for
recommendations
abouttestequipment.
Citizservicemanual145
F U N C T I O N  T E S T S
9.9.3 Testsequence
Dangerofelectricalshock/shortcircuit!
Donotpluginthecoffeemachineduringinsulationtest.
Dangerofelectricalshock!
Donottouchtipoftestprobes.
Donottouchmetallicpartsofcoffeemachineduringtest.
Readandobservesafetyinstructionsinusermanualoftestequipment.
ASwisspowerplugis
shownhereasan
example.
Useashortcircuit
plugorspecialalliga
torclipsetc.assub
stituteforthistestadapter.
1) Connectthephaseandneutralpinof
thepowerplugtogetherwithatest
adapter(procuredbytherepair
centre).
2) Connecttheblackmeasuringcableto
thetestadapter(seeimage).
3) TurntheONOFFmachine'smain
switchonpositionI(ON).
Symbolicillustration
oftestequipment.
4) Switchontestequipmentandselect
aninsulationtestvoltageof500VDC.
Sometestequipment
displaystestpassed
orfailedinsteadof
theinsulationresistance.
5) Touchclosinghandlewithredtest
probe.
6) Press"measure"button.
7) Readoffdisplayedinsulationresist
anceortestresult.
Theinsulationresistancemustbe
higherthan300 kOhm
(300,000 Ohm).
Citizservicemanual
146
F U N C T I O N  T E S T S
Thecoffeemachine
Citiz&Cohas2test
holestocheckboth
thermoblocks.
TestholesonbottomofCitiz/Citiz&milk/Citiz&Coplatforms
8) Inserttipofredtestprobeintesthole
andtouchthermoblock.
9) Press"measure"button.
10) Readoffdisplayedinsulationresist
anceortestresult.
Theinsulationresistancemustbe
higherthan300 kOhm
(300’000 Ohm).
11) Switchofftestequipment.
12) Shortredwithblacktestprobeto
makesurethattestvoltageisdis
charged.
13) Fillinresultsinatestreport.
Additionaltestsforcoffeemachine
Citiz&milk:
1) Touchuppermetallicpartofmilk
frotherwithredtestprobe.
2) Press"measure"button.
3) Readoffdisplayedinsulationresist
anceortestresult.
Citizservicemanual147
F U N C T I O N  T E S T S
9.9.4 Whattodoiftheinsulationtestfails
• Assumethatthecoffeemachineisdefectafterafailedinsulationtest.
• Checkwiringandlocatefault.Afterfaultclearanceproceedwithtroubleshooting
checklist(seepage49).
• Incaseofdoubtaninsultationtestonthemilkfrotheralonecanbecarriedouton
thecoffeemachineCitiz&milk:touchphaseandneutralcontactsatthebottomwith
onetestprobesuccessivelyandthemetallicupperpartwiththeothertestprobe.
Ifinsulationtestfails,replacemilkfrother.
4) Removemilkfrotherfromplatform.
5) Insertredtestprobeincentralopening
ofmilkfrotherconnector(groundcon
nection).
6) Press"measure"button.
7) Readoffdisplayedinsulationresist
anceortestresult.
8) Switchofftestequipment.
9) Shortredwithblacktestprobeto
makesurethattestvoltageisdis
charged.
10)Fillinresultintestreport.
Riskofdamage!
Asparkovercandamagetheelectroniccontrolboardandsensorsetc.
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148
E X P L O S I O N  D R A W I N G S
1 0 E X P L O S I O N  D R A W I N G S
10.1ModelCitiz,coreunitDrange(EF483)
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E X P L O S I O N  D R A W I N G S
10.2 ModelCitiz,coreunitCrange(EF484)
Citizservicemanual
150
E X P L O S I O N  D R A W I N G S
10.3 ModelCitiz&milk,coreunitDrange(EF485)
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E X P L O S I O N  D R A W I N G S
10.4 ModelCitiz&milk,coreunitCrange(EF486)
Citizservicemanual
152
E X P L O S I O N  D R A W I N G S
10.5 ModelCitiz&Co,coreunitDrange(EF487)
Citizservicemanual153
E X P L O S I O N  D R A W I N G S
10.6 ModelCitiz&Co,coreunitCrange(EF488)
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154
P A R T S  L I S T
1 1 P A R T S  L I S T
Pos. Component Remark
1 ChassisA
1 ChassisB
2 CoverA
2 CoverB
3 SidepanelAleftIvory(old:CreamyWhite)
4 SidepanelArightIvory(old:CreamyWhite)
3 SidepanelAleftBlack(old:PianoBlack)
4 SidepanelArightBlack(old:PianoBlack)
3 SidepanelBleftGrey(Slate)
4 SidepanelBrightGrey(Slate)
3 SidepanelBleftRed(old:RetroRed)
4 SidepanelBrightRed(old:RetroRed)
5
OutletBspare,containing
FrontCover(1x)
OutletBchrome(1x)
5 OutletAChrome
6
Wastewaterspare,containing
WastewaterA+B(1x)
Cupsupportstop(2x)
7 CapsuleContainerA+B
8 CupsupportA
8 CupsupportB
9 Blind
10 DamperMBUclosinghandle
11 EspressoButtonA
12 CoffeeButtonA
11 CoffeeButtonB
13 SteamCover
14 TMBU HandleA
14 TMBU HandleB
15 Thermobloc230V Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc120V(USA) Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc120V(Brasilien/Taiwan) Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc120V(Mexico) Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc230V Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc120V(USA) Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc120V(Brasilien/Mexico) Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc100V Completeassemblyincl.support,completewiring
(safety),withNTC
15 Thermobloc230V Completeassemblyincl.support,completewiring
(safety),withNTC
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P A R T S  L I S T
15 Thermobloc230V Completeassemblyincl.support,completewiring
(safety),withNTC
18 Pump230V Incl.thermostatandbothwires,pumpcover,pumpsup
ports,90°angle.Invensys,noCeme,noSysko
18 Pump120V Incl.thermostatandbothwires,pumpcover,pumpsup
ports,90°angle.Invensys,noCeme,noSysko
18 Pump100V Incl.thermostatandbothwires,pumpcover,pumpsup
ports,90°angle.Invensys,noCeme,noSysko
18 Pump127VIEC Incl.thermostatandbothwires,pumpcover,pumpsup
ports,90°angle.Invensys,noCeme,noSysko
19 Thermostat
20 ClipThermostat
21 Pumpsupportupside
22 Pumpsupportdownside
23 Pumpconnector90°
24 Oring5,28x1,78
25 Pumpcover
26 APD Complete
27 FlowmeterFHKSC124.524VDC,513mA (BirdyFS:5.6V,45mA)newstandard
28 HosePumpAPD Deliverywithoutorings(youcanloosethem)
29 HoseTBTMBU Deliverywithoutorings(youcanloosethem)
30 Tubeguiding
31 AnglehoseFMin
32 AnglehoseFMPump
33 AnglehoseAPDout
33 AnglehoseAPDoutM4
34 Connectorclip5mm
35 Connectorclip4mm
36 Oring3.40x1.90
37 Hoseconnector55° AlsopartofTBspareassembly
38 Isolationspoutangular AlsopartofTBspareassembly
39 NTC(Cablelength=160mm)
40 PTScrewTorxK30x12
41 PTScrewOvalK30x12
42 ElectronicControlBoardM1+3220240V50/60Hz Incl.housing
42 ElectronicControlBoardM1+3120127V50/60Hz Incl.housing
42 ElectronicControlBoardM1+3100110V50/60Hz Incl.housing
42 ElectronicControlBoardM4220240V50/60Hz Incl.housing
43 Electroniclid
44 Watertank1
44 Watertank4
45 Watertank1cover
45 Watertank4cover
46 Driptray1 Nespresso(inc.rubberfeet)
46 Driptray1 Krups(incl.rubberfeet)
46 Driptray1 Turmix(incl.rubberfeet)
46 Driptray1 DeLonghi(incl.rubberfeet)
46 Driptray1 Magimix(incl.rubberfeet)
46 Driptray1 Koenig(incl.rubberfeet)
47 Rubberfeet(Driptray1)
48 Driptray3
48 Driptray4
Pos. Component Remark
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156
P A R T S  L I S T
49 DripGridA1
49 DripGridB1
49 DripgridA3
49 DripgridB3
49 DripgridA4
49 DripgridB4
50 Baseplate1top Inc.rubberfeet
50 Baseplate3top Inc.rubberfeet
50 Baseplate4top Inc.rubberfeet
51 Baseplate1bottom Inc.rubberfeet
51 Baseplate3bottom Inc.rubberfeet
51 Baseplate4bottom Inc.rubberfeet
52 Rubberfeet
53 Watertankconnector1 Incl.filter&seal
53 Watertankconnector4 Incl.filter&seal
54 ON/OFFswitchincl.support(spareparts) 2pol
54 ON/OFFswitchincl.support(spareparts) 1polnewmarquardt
55 PowersupplycordJP2pol Incl.receptacleandisolation
55 ConnectioncableUL1 Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(SEV) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(AU) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(IL) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(UK) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(Cebec) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(AR) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(KR) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(ZA220V) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(CN) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(SG) Incl.receptacleandisolation
55 PowersupplycordTW3pol Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M1(BR220V) Incl.receptacleandisolation
55 PowersupplycordBR3pol Incl.receptacleandisolation
55 PowersupplycordBR3pol Incl.receptacleandisolation
55 ConnectioncableULM3countryspec Incl.receptacleandisolation
55 ConnectioncableULUS/MXM3 Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(ZA) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(BR220V) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(UK) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(AR) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(AU) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(SEV) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(CN) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(Cebec) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(IL) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(KR) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M3(SG) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(SEV) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(Cebec) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(UK) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(AU) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(IL) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(AR) Incl.receptacleandisolation
Pos. Component Remark
Citizservicemanual157
P A R T S  L I S T
55 Connectioncable230Vcountryspec.M4(SG) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(ZA) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(BR220V) Incl.receptacleandisolation
55 Connectioncable230Vcountryspec.M4(CN) Incl.receptacleandisolation
56 CablebracketUL2pol
56 CablebracketUL3pol
56 CablebracketIEC3pol
57 OtterconnectorCS7
58 Cupstorage
59 Aeroccino3220240V50/60Hz
59 Aeroccino3120127V50/60Hz
60 Mixer(hotmilk)
61 Whisk(foam)
62 AeroccinoLidincl.seal
63 Anglehosewater4
64 Anglehoseventing4
65 AngleharddoubleM4
66 Tanksnaphook
69 Connectionisolation
70 DoubleTab4.8Sn
71 CablefixationTB
72 Coverstopper
Pos. Component Remark
Citizservicemanual
158
N O T E S
1 2 N O T E S

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