599089 DD603 Diagnostics Fisher & Paykel Dish Drawer And DS603

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DISHDRAWER®

MODELS

DD603 DS603

599089

Fisher & Paykel Appliances © 2003 October 2003

2

DIMENSIONS & SPECIFICATIONS

Product Size (mm)

Height (double) 819 - 870mm

Height (single) 409mm

Width 595mm

Depth 570mm

Drawer Open (incl cabinet) 1080mm

Specifications

Electrical

NZ/AUS/UK/UE 230-240Volt AC 50Hz 10 amp max.

USA 110-120Volt AC 60Hz 12.5 amp max.

JAP 90-110Volt AC 50/60Hz 11.6 amp max.

Water Inlet Valves 24Volt DC

70 ± 5 Ohms

5 Lt/min (1.3 US gal/min)

Chassis P.C.B.

NZ/AUS/UK/UE 240 Volt AC

USA/JAP 120 Volt AC

Temperature Sensor 962 Ohms @ 20oC (68oF)

(On Heater Plate) 1000 Ohms @ 30oC (86oF)

1202 Ohms @ 60oC (140oF)

Drying Fan 3.4 K Ohms

Motor 80 Volt DC 3 Phase

Drain 4200 RPM

Wash 2300 – 2850 RPM

Stator 8 ± .5 Ohms per winding

3

Inlet Hose 1.7m (66 inches)

1000Kpa (145 PSI)

Drain Hose 2.0m (78 inches) from rear of cabinet

2.5m (98 inches) bottom tub

2.9m (114 inches) top tub

Detergent Dispenser 24 Volt DC

70 ± 5 Ohms

Rinse Aid Dispenser 24 Volt DC

70 ± 5 Ohms

Heater Plate (NZ/AUS/UK/UE) 240 Volt AC

Heater Track 60 ± 3 Ohms

Power Supply Resistor 125 + 5 Ohms

Heater Plate (USA) 120 Volt AC

Heater Track 26 ± 2.5 Ohms

Power Supply Resistor 30 + 5 Ohms

Heater Plate (JAP) 110 Volt AC

Heater Track 20 ± 1.5 Ohms

Power Supply Resistor 20 + 2 Ohms

Diverter Valve Softener Assy 24 Volt DC

70 + 5 Ohms

Brine Pump 24 Volt DC

70 + 5 Ohms

4

OPTION ADJUSTMENT

Changing Setup Options

To enter the option adjustment mode, press POWER to turn the LCD on, then

hold the ECO button and KEYLOCK button simultaneously for 5 seconds,

ensuring that ECO is pushed first. Once the option adjustment mode is

entered, a beep is emitted and the LCD displays the letters rA. Pushing the

START/PAUSE button scrolls through the options and allows changes as

follows:-

Rinse Aid Setup (rA).

Water Supply Hardness Setup (hd).

Auto Power Option (AP).

End of Cycle Beeps (EC).

Closed Drawer Option (Ld).

Clean/Dirty Dish Symbol (dS).

Dry Enhancement Option (LH).

Integrated:- On an integrated DishDrawer where there is no display, the

option chosen is indicated by the lights showing on the integrated badge as

follows:-

Rinse Aid Setup (red light above START/PAUSE button).

Water Supply Hardness (green light above START/PAUSE button).

Auto Power Option (orange light above START/PAUSE button).

End of Cycle Beeps (green light above START/PAUSE and red light above

Keylock) button).

Closed Drawer Option (red light above START/PAUSE and KEYLOCK

buttons).

Clean/Dirty Dish Symbol (not available on Integrated models).

Dry Enhancement Option (orange light above START/PAUSE button, ECO

light is red).

Push POWER at any time to exit this setup mode.

Integrated:- On an integrated DishDrawer when one of the options is

changed, it is indicated by the red wash cycle LEDs on the secondary control

panel. If an option is turned on, then all the LEDs turn on, and if an option is

turned off, all the LEDs turn off.

5

Rinse Aid Setup (rA)

The current rinse aid setting is shown using the red LED’s on the touch switch

panel.

The amount of rinse aid dispensed into a rinse cycle can be varied to suit the

level of hardness of the local water supply. It is adjusted for 1 - 5 dispenser

levels

(1 = approx 0.5mls (1/10) teaspoon of rinse aid, 5 = approx. 2.5mls (1½)

teaspoon of rinse aid).

Push KEYLOCK to advance the rinse aid setting. Once the desired setting is

achieved, push POWER to exit. The rinse aid index is stored in EE memory,

so even with the power removed, the rinse aid level is retained.

Water Supply Hardness Setup (hd) (Where Fitted)

The current supply hardness setting is shown using the red LED’s on the

touch switch panel. One of 5 settings should be selected according to the

known hardness of the supply water. Each setting is appropriate for the

following water supply hardness:

No LED Water Softener turned off, continuous bypass of softener

1 LED 150-250 ppm water supply hardness

2 LEDs 250-350 ppm water supply hardness

3 LEDs 350-450 ppm water supply hardness

4 LEDs 450-550 ppm water supply hardness

5 LEDs 550-625 ppm water supply hardness

Push KEYLOCK to advance the Water Softener setting. Once the desired

setting has been achieved push POWER to exit.

Selection of a setting affects how the Electronic Controller diverts supply

water, how much water is treated, and how much salt is used in regeneration,

in a manner that optimises the performance of the Water Softener.

Auto Power Option (AP)

The automatic power up sequence that occurs when the tub is opened can be

turned on or off using the KEYLOCK button. If the scrubbing brush is

showing on the LCD, then the auto power up sequence will occur when the

tub is opened. If the scrubbing brush is not showing, then the DishDrawer will

not automatically power up when the tub is opened (the customer will need to

push the power button each time they wish to use the DishDrawer). Push

POWER to exit when the desired setting has been selected.

6

End of Cycle Beeps (EC)

The six beeps that occur at the end of the cycle can be turned on or off using

the KEYLOCK button. If the scrubbing brush is showing on the LCD, then the

end of cycle beeps are activated. If the scrubbing brush is not showing, then

the end of cycle beeps are deactivated. Push POWER to exit when the

desired setting has been selected.

Closed Drawer Option (Ld)

The closed drawer option can be turned on or off using the KEYLOCK button.

If the scrubbing brush is showing on the LCD, then the closed drawer option

is selected and it will keep the DishDrawer locked at all times by bringing the

lid down. When this mode is selected the customer needs to push the

POWER button to lift the lid whenever they want to open the drawer. When

they close the drawer again, the lid comes down automatically after 30

seconds and locks the tub. If the scrubbing brush is not showing, then the

closed drawer option is deactivated. Push POWER to exit when the desired

setting has been selected.

Clean/Dirty Dish Symbol (dS)

(Not available on integrated models)

The clean/dirty dish symbol can be turned on or off using the KEYLOCK

button. If the scrubbing brush is showing on the LCD, then the clean/dirty dish

option is selected. This means that the end of cycle clean dishes symbol will

remain in the LCD display until the power button is pressed to clear it. If the

scrubbing brush is not showing, then the clean/dirty dish symbol will

disappear when the drawer is first opened at the end of a cycle (factory

setting). Push POWER to exit when the desired setting has been selected.

Dry Enhancement Option (LH)

(Available in prefinished products from Serial Number MEM741743,

manufactured after 21/5/03, software version 3.2.06. Estimated to be

available in integrated models from October 2003, software version

3.2.07.)

Dry enhancement option can be turned on or off using the KEYLOCK button.

If the scrubbing brush is showing on the LCD, then the dry enhancement

option is selected. This means the lid will stay down and the drying fan will

continue running for 4 hours after the wash program completes.

7

If the customer wishes to open or stop the DishDrawer during this 4 hour

period, they can do so by pushing the POWER or START/PAUSE button.

This will reset the feature until the end of the next wash program. Push

POWER to exit when the desired setting has been selected.

8

DIAGNOSTICS

DishDrawer Diagnostics

Dishwasher Diagnostics can only be entered in Power Off mode, ie. when

there is no display on the LCD or the badge LED’s are off. Diagnostics is

entered by holding the KEYLOCK and START/PAUSE buttons

simultaneously for 5 seconds. Ensure that KEYLOCK is pushed first.

There are currently four levels of diagnostics. To move to the next level push

POWER. To enter a level push START/PAUSE. Once a level has been

entered, pushing POWER will exit diagnostics completely. If no level is

entered, then the display will cycle through the four levels and exit after the

last. On entering diagnostic mode, the first level is the Display/Download

Mode.

Display/Download Mode

In this mode, all LED’s and LCD segments (except keylock) are illuminated.

Optical LED Download/Fault Display

An optical data download is available here to download all EE data to a PC or Palm PC

via the lower tub-home sensor light pipe. Hold the reader pen over the lower tub-home

sensor light pipe and press START/PAUSE to initiate the download. A short beep

indicates the start and finish of download.

The last two faults are displayed on the LCD (secondary control panel LEDs for

integrated models) during the optical download. The Current Fault code is displayed first

followed by the Previous Fault Code. To read the Fault Code on the secondary display,

refer to page 7 on Fault Codes.

Clearing Fault Logs

To clear the Current Fault, press the KEYLOCK button until a beep is

sounded. This action moves the Current Fault into the Previous Fault while

clearing the Current Fault. To Clear the Previous Fault press KEYLOCK

once more until the beep is sounded.

Warning: Once a fault has been cleared, it is permanently removed from

memory and cannot be recovered.

Press POWER to advance to the next level.

9

Hardware Output Diagnostic Test Mode

This level tests all the hardware outputs and inputs. The LCD display shows

“HO”.

Press POWER to skip hardware diagnostics and advance to the next level.

Press START/PAUSE to enter hardware diagnostics.

Once hardware diagnostics has been entered, the current hardware output

being tested is indicated by letters in the LCD display, and for integrated

models the LEDs on the touch switch panel using binary encoding, as shown

in the table on the next page.

Different combinations of outputs can be switched on or off together, but the

controller will prevent higher current drawing components such as the wash

pump and the lid motors being turned on together.

Press START/PAUSE to advance to the next hardware output.

Press KEYLOCK to turn the currently displayed output on or off. If the

scrubbing brush symbol (green LED above start/pause button on integrated

models) is displayed, then that output has been switched on, and if it is not

displayed then that output is off.

Press POWER to Exit at any time (all outputs will be switched off on exit).

10

As mentioned on the previous page, the LCD display and touch switch panel

LEDs are illuminated to correspond to a particular hardware device. The

following table details the display order of the test.

LCD

Norm

LED

Fast

LED

Deli

LED

Rinse

LED

Hardware Output

bL Off Off Off On Backlight

Er Off Off On Off Element Relay

Ld Off Off On On Lid Motors (will run for 10 seconds)

dd Off On Off Off Detergent Diverter Valve

FU Off On Off On Fill Water Valve

P1 Off On On Off Motor Wash direction (2300-2850

rpm)

P2 Off On On On Motor Drain direction (4200 rpm)

rd On Off Off Off Rinse Aid Dispenser (dispenses

current setting)

dF On Off Off On Drying fan

LE On Off On Off Rinse Aid LED

C1 On Off On On Water Softener Diverter Valve

C2 On On Off Off Water Softener Brine Pump

°COn On Off On Displays current water temperature.

°EOn On On Off Displays controller rail voltage

(C3 is used in the Factory to empty the Water Softener before the Product is

packed.)

WARNING: In diagnostic mode there is no component protection. Therefore

take care when running individual components not to overload them. It is

advisable to avoid turning the element on without filling the tub with water first.

NB : No fault codes will come up while in diagnostics mode.

Tub Home Sensor Test: At any time during HO test mode, the Keylock

symbol on the LCD display (Keylock LED on integrated badge) indicates the

tub position. On = Closed, Off = Open.

11

Fast Test Cycle

This level runs a 5 minute fast test cycle.

Press POWER to skip Fast Test Cycle and advance to the next level.

Press START/PAUSE to enter Fast Test cycle.

Once Fast Test Cycle is selected the DishDrawer goes into standby mode

and 5 minutes will be showing on the display. The test cycle is started by

pushing START/PAUSE and the following components are run during the 5

minute cycle that follows:- Lid motors, fill valve, wash motor, element, drain

motor.

Press POWER to Exit at any time.

Continuous Cycle Test Mode

In this level the DishDrawer can be run continuously in any wash cycle. Once

the cycle has finished, the DishDrawer automatically restarts the same wash

cycle.

Press POWER to skip Continuous Cycle. As this is the last level, doing this

will exit diagnostics.

Press START/PAUSE to enter Continuous Cycle.

Once selected, the LCD backlight flashes on and off to indicate the

DishDrawer is in continuous cycle and the cycle starts straight away (for

integrated models the LED above the start/pause button will be orange

instead of green to indicate the DishDrawer is running in continuous cycle). It

will run the last cycle that had been selected prior to going into diagnostics

mode.

If it is desired to run a different cycle, exit diagnostics, turn the DishDrawer on

as normal and select the cycle required. Then turn the DishDrawer off again,

re-enter diagnostics and restart the Continuous Cycle as above.

Press POWER to Exit at any time.

12

Cycle Count Retrieval

(not available on integrated models)

To display the cycle count on the LCD screen, pause the DishDrawer while

running a Continuous Cycle. The two bytes of the cycle count will be

displayed alternately, in syncronisation with the changing backlight.

The Low byte is displayed when the backlight is off.

The High byte is displayed when the backlight is on.

To calculate the Total DishDrawer cycle count use the formula below.

Cycle_Count = (200 x High_byte) + Low_byte.

Eg. Low_byte = 156

High_byte = 2

Cycle_count = (200 x 2) + 156 = 556.

Temperature & Voltage Display Mode

(Not available on integrated models)

During a wash cycle, the current water temperature or the power supply rail

voltage of the controller can be displayed on the LCD instead of the time

remaining. To enter temperature/voltage display mode, start a wash cycle as

normal. Initiate a keylock by pushing and holding the KEYLOCK button for 4

seconds

Once in keylock mode, push and hold START/PAUSE for 8 seconds to enter

temperature display mode. The display now alternates between a °C symbol

and the water temperature. Pressing the START/PAUSE again changes the

display to alternate between an °E symbol and the power supply rail voltage

of the controller.

To cancel temperature/voltage display mode, press the POWER button.

Show Off/Showroom Wash Mode

This mode initiates a shop show off display and wash operation

demonstration.

With the DishDrawer powered up and turned on, the show off mode is entered

by holding the ECO and POWER buttons simultaneously for 5 seconds.

Ensure that ECO is pushed first.

13

The DishDrawer is now in the Show Off mode and cycles through all of the

LED & LCD segments while pulsing the LCD backlight on and off.

Pressing the POWER button now puts the DishDrawer into the Showroom

Wash mode. Before running this mode the tub should be filled with water until

it is just touching the underside of the spray arm. The Showroom Wash is

started by pushing the START/PAUSE button whereby the following cycle is

run:-

The lid is pulled down.

The wash motor starts and runs for 4 minutes.

The wash motor stops.

The lid is lifted.

The display counts down to zero throughout this cycle.

The DishDrawer turns off at the end of this cycle.

The DishDrawer is still in the Showroom wash mode however, and it can be

re-run by pushing POWER and then START/PAUSE. Once Show

Off/Showroom Wash mode has been initiated, the mains power must be

removed to exit out.

14

DIAGNOSTICS QUICK REFERENCE CHARTS

Fault Display/Download Mode

Press and hold KEYLOCK, then START/PAUSE for 5 seconds.

All LEDs & LCD segments except Keylock are illuminated.

Press START/PAUSE.

This initiates Pen upload via lower tub-home light pipe. At the same time

the current and then the previous fault code will be displayed in the LCD

screen and on the secondary control panel LEDs. To read the fault code

on the secondary display, refer to page 7 on Fault Codes.

Press KEYLOCK.

This will clear current fault code. Note: if Keylock is pressed again, the

previous fault code will be cleared.

Press POWER to exit.

15

Hardware Output Test Mode

Press and hold KEYLOCK, then START/PAUSE for 5 seconds.

All LEDs & LCD segments except Keylock are illuminated.

Press POWER once.

“HO” will show in the display (integrated: Heavy, Normal, Fast, Delicate,

Rinse LEDs showing)

Press START/PAUSE.

Scroll through the following outputs using Start/Pause. Turn the outputs on

& off using Keylock button.

Press POWER to exit.

Note: Scrubbing Brush = output on, No Scrubbing Brush = output off (on

integrated models a green LED above the start/pause button is used in

place of the scrubbing brush).

LCD Norm Fast Deli Rinse Hardware Output

Display LED LED LED LED

bL Off Off Off On Backlight

Er Off Off On Off Element Relay

Ld Off Off On On Lid Motors (will run for 10

seconds)

dd Off On Off Off Detergent Diverter Valve

FU Off On Off On Fill Water Valve

P1 Off On On Off Motor Wash direction

(2300-2850 rpm)

P2 Off On On On Motor Drain direction

(4200 rpm)

rd On Off Off Off Rinse Aid Dispenser

(dispenses current

setting)

dF On Off Off On Drying fan

LE On Off On Off Rinse Aid LED

C1 On Off On On Water Softener Diverter

Valve

C2 On On Off Off Water Softener Brine

Pump

°COn On Off On Displays current water

temperature.

°EOn On On Off Displays controller rail

voltage

Tub Home Sensor test:- Keylock symbol on = tub closed, off = tub open

16

Fast Test Cycle

Press and hold KEYLOCK, then START/PAUSE for 5 seconds.

All LEDs & LCD segments except Keylock are illuminated.

Press POWER twice.

“FC” will show in the display (integrated: Heavy, Normal, Delicate, Rinse

LEDs showing).

Press START/PAUSE twice.

The 5 minute fast test cycle will start.

Press POWER to exit.

Continuous Cycle

Press and hold KEYLOCK, then START/PAUSE for 5 seconds.

All LEDs & LCD segments except Keylock are illuminated.

Press POWER three times.

“CC” will show in the display (integrated: Heavy, Normal, Rinse LEDs

showing).

Press START/PAUSE.

The last cycle that had been selected prior to going into diagnostics mode

will be run continuously.

Press POWER to exit.

Temperature & Voltage Display Mode

(Not available on integrated models)

Start a wash cycle running.

Press & hold KEYLOCK for 4 seconds.

Keylock will be activated.

Press & hold START/PAUSE for 8 seconds.

LCD will now alternate between °C symbol & the water temperature.

Press START/PAUSE.

LCD will now alternate between °E symbol & the controllers rail voltage.

Press & hold KEYLOCK for 4 seconds.

Keylock is deactivated.

Press POWER to exit.

17

Fault Codes

The faults are displayed in the LCD as one of 5 F (fatal) faults or 1 U (user)

fault along with the symbol of a spanner. A fatal fault will usually require the

assistance of a qualified service person, while a U1 user fault indicates the

machine had failed to prime within a certain length of time usually because

the tap has not been turned on. For this reason at the same time a U1 comes

up in the display we also show the symbol of a tap. In the Integrated models,

an LCD is not available, and the presence of a fault is indicated by a Red

centre LED, with the fault number indicated on the touch switch panel with

Red LEDs.

Once a fault is repaired it can be cleared by pressing the POWER button. If

the fault is still present then it will not clear.

A fatal or user fault is accompanied by a continuous pulsating beep, which

can be turned off by pressing either the POWER, START/PAUSE, or KEY

LOCK button.

The last two faults are logged into EE memory.

The other U (user) faults have been removed. The old U2 fault, which was

the tub forced open during a cycle, has been removed completely. Instead, if

the tub is forced open, the product simply pauses as if someone had pressed

the start/pause button. The old U3 fault, which indicated a failure to drain, i.e.

water left in the tub, will not show up a fault and the DishDrawer will continue

through the cycle.

18

Fault Code Description Chart

The following chart is a quick reference guide on fault codes. To read a fault

code off an integrated model, refer to the LED Display column on the chart

below. The LED that has activated on the secondary display indicates which

fault code has occurred.

Fault

Code

LED

Display

Fault Possible Causes

F1 Rinse LED The flood

switch has

been activated

for more than

six seconds

· Inlet hose to inlet valve

connection loose

· Inlet valve body leak

· Damage to the fill or drain

hoses

· Heater plate damage

(chipped enamel)

· Seals/O Rings (pinched,

contaminated or poor join)

· Dispenser (seal, diverter

valve or weld leak)

· Lid area (lid motors not

functioning correctly, lid off

yoke, yoke jammed or broken,

or foreign object interfering

with lid seal)

F2 Delicate

LED

The motor has

not been

sensed

rotating

· Foreign object has jammed

the rotor

· The rotor has failed

· The hall sensor has failed

· The electronic controller has

failed

F3 Delicate

and Rinse

LED

The water

temperature

has been

sensed at

greater than

85°C (185°F)

· The incoming water is greater

than 85°C (185°F)

· The element has failed closed

circuit

· The temperature sensor has

failed

· The electronic controller has

failed

19

Fault

Code

LED

Display

Fault Possible Causes

F4 Fast LED No

temperature

increase has

been sensed

for 2 hours

while the

element is on

· The element is not connected

· The element has failed open

circuit

· The temperature sensor has

failed

· The electronic controller has

failed

F9 Normal and

Rinse LED

Electronics

Failure

· The electronic controller has

failed

U1 Heavy and

Rinse LED

Machine has

failed to prime

with water

within approx.

3 minutes

· The water supply is not turned

on

· The machine is syphoning

· The spray arm is not in place

· Excessive foaming

· The inlet valve has failed

· The electronic controller has

failed

· Rotor not fitted correctly

20

Fault Code Problem Solving Charts

The following charts can be used as a guide to help locate faults in a

DishDrawer. Answer each question with a yes or no and follow the

instructions inside the relevant box.

F1 The flood switch has been activated for more than 6 seconds

Question Yes No

1 Is there a F1 on both

displays?

Go to Question 2 If power fails to the

bottom tub it will cause

the top tub to go F1.

Test heater plate.

2 Has a flood occurred?

(N.B. The flood may

have dried up)

Go to Question 3 Go to Question 13

3 Is the lid sealing on the

tub correctly?

Go to Question 5 Go to Question 4

4 Are the lid actuators

functioning correctly?

Go to Question 5 Check the lid actuators

are assembled correctly

on the slides and yokes.

Check the plugs on the

RFI board and the

terminals on the lid

motors. If the lid

actuators look slow

replace them.

5 Is the water level in the

tub high?

Go to Question 6 Go to Question 8

6 Is the water inlet valve

leaking?

Replace inlet

valve

Go to Question 7

7 Is the DishDrawer

priming correctly?

Go to Question

12

Go to Question 8

8 Is the spray arm split? Replace spray

arm

Go to Question 9

21

9 Is the spray arm

running freely?

Go to Question

10

Check the rotor is

running freely, clear of

foreign objects and fitted

correctly. Make sure

the wash impeller is not

slipping off the rotor

shaft

10 Is water leaking from a

split inlet or drain

hose?

Replace split inlet

or drain hose

Go to Question 11

11 Is water leaking around

the heater plate ‘O’

rings?

Replace or refit

‘O’ rings

Go to Question 12

12 Is the drain hose

blocked?

Clear drain hose

of blockage

Go to Question 13

13 Is there condensation

or foreign matter

around the flood switch

PCB?

Clear flood

sensor of

condensation or

foreign matter

Go to Question 14

14 After clearing water

does the F1 fault code

still activate?

Replace Chassis

RFI board

Go to Question 15

15 Refer to Bulletin

DW028

F2 The motor is not sensed to be rotating

Question Yes No

1 Is the rotor jammed? Free jammed

rotor, check for

foreign object

damage to rotor

and rotor

housing.

Go to Question 2

2 Does the stator wiring

from the controller test

okay?

Go to Question 3 Replace wiring harness or

repair faulty connections.

3 Do the stator windings

show the correct

resistance?

Go to Question 4 Repair or replace stator

as required

22

4 Is the rotor position

sensor clipped into the

stator housing

correctly? Is the

sensor plugged into the

controller with a good

connection?

Go to Question 5 Clip rotor position sensor

into stator housing or

repair wiring connection

at electronic controller.

5 Rotor position sensor

fault?

Replace rotor

position sensor

Go to Question 1

F3 Water temperature sensed at greater than 85°C ( 185°F)

Question Yes No

1 Is the incoming water

temperature greater than

85°C (185°F)

Adjust the incoming

water temperature.

Go to Question 2

2 Is the element on all the

time?

Replace the electronic

controller

Go to Question 3

3 Are the wiring and

connections from the

controller to the element

all okay?

Go to Question 4 Repair or replace

wiring harness or

wiring

connections

4 Are there any signs of

moisture around the

temperature sensor?

Locate and repair

source of leak

Go to Question 5

5 Is the resistance of the

temperature sensor

correct?

Go to Question 6 Replace heater

plate assembly

6 Does the machine fault

again if run through a test

cycle?

Go to Question 1 No fault found

23

F4 No temperature increase has been sensed while the element is

turned on

Question Yes No

1 Does the element heat in

diagnostics?

Go to Question 7 Go to Question 2

2 Test the resistance of the

heater element using the

connection on the

controller, is it correct?

Go to Question 3 Go to Question 5

3 Is the connection on the

controller okay?

Go to Question 4 Replace or repair

connection

4 Electronic controller

failure?

Replace electronic

controller

Go to Question 1

5 Are the wiring and

connections from the

controller to the element

all okay?

Go to Question 6 Repair or replace

wiring harness or

wiring

connections

6 Is the resistance of the

heater element correct?

Go to Question 7 Replace heater

plate

7 Is the resistance of the

temperature sensor

correct?

Replace electronic

controller

Go to Question 8

8 Are the wiring and

connections down to the

temperature sensor okay?

Go to Question 9 Replace or repair

wiring harness or

wiring

connections

9 Heater element failure? Replace heater plate Go to Question 1

F9 Electronics failure (EEPROM access error)

Question Yes No

1 If the DishDrawer is

isolated from the power

supply for 10 seconds,

does the fault clear?

No fault found Go to Question 2

2 Electronic controller

failure?

Replace electronic

controller

Go to Question 1

24

U1 DishDrawer failed to prime with water within approx. 3 minutes

Question Yes No

1 Is the tap turned on? Go to Question 2 Turn the tap on

2 Is the spray arm in place?

(spray arm may have

been refitted since U1

fault occurred)

Go to Question 3 Refit spray arm

3 Activate the water inlet

valve in diagnostics. Does

any water enter the

machine?

Go to Question 4 Go to Question 7

4 Is the impeller on the rotor

slipping?

Replace the rotor Go to Question 5

5 Is the supply water

pressure above 30Kpa

(4.3p.s.i)?

Go to Question 6 The DishDrawer

requires a

minimum water

pressure

installation of

30Kpa (4.3p.s.i)

6 Are the inlet water hoses

and valves free of any

blockages or

obstructions?

Go to Question 10 Clear the water

valves or hoses

of blockage or

obstruction

7 Is the resistance of the

water inlet valve

measured at the plug on

the controller correct?

Go to Question 8 Go to Question 9

8 Is there 24V DC coming

from the controller during

the water inlet valve test?

Go to Question 6 Replace the

electronic

controller

9 Are the wiring and edge

connections down to the

water inlet valve okay?

Go to Question 10 Replace or repair

wiring harness or

wiring

connections

10 Water inlet valve failure? Replace water inlet

valve

Go to Question

11

11 Is the Rotor fitted

correctly?

Go to Question 1 Refit Rotor

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Poor Dry Performance

Poor Dry Performance

Question Yes No

1 Is the customer

complaining of plastic

items not drying?

Advise customer

that due to plastics

having a low

thermal mass these

items give inherently

bad drying

performance

Go to Question 2

2 Is the customer using

rinse aid?

Go to Question 3 Advise customer that

the use of rinse aid will

improve dry

performance

3 Is the customer using

Fast or Eco cycles

Advise customer

that due to lower

final rinse

temperatures dry

performance is

comprised when

using Fast and Eco

cycles (there is less

residual heat for

drying at the end of

cycle)

Go to Question 4

4 Is the rinse aid setting

high enough for the

water hardness in the

area?

Go to Question 5 Turn the rinse aid up to

a higher setting

5 Using diagnostics test

the dispenser. Is it

dispensing the correct

amount of rinse aid?

Go to Question 1 Replace dispenser

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Poor Wash Performance

Customers Complaint Food Particles left on Dishes

Cause of

problem (1)

Spray arm has stopped rotating.

How to resolve

the problem

a) One of the dishes / cutlery / utensils has fallen

through the basket and jammed the spray arm,

remove the obstruction.

b) Filter plate, drain filter, or drain filter access panel is

not installed correctly and is causing the spray arm

to jam.

Cause of

problem (2)

The product is being over loaded or incorrectly loaded

with dishes.

How to resolve

the problem

Advise customer of correct loading.

Cause of

problem (3)

Customer is selecting the wrong wash cycle for the soil

level on the dishes.

How to resolve

the problem

Advise customer about reduced water temperatures

(up to 20ºC / 70°F lower) and wash times when using

Fast and Eco cycles.

Customers Complaint Coffee/Tea Stains left in Cups

Cause of

problem (1)

Not enough detergent being used. To remove these

stains requires a stronger concentration of detergent in

the water.

More detergent is also required in hard water areas as

minerals in the hard water reduce the effectiveness of

the detergent.

How to resolve

the problem

Fill the main-wash detergent cup to the top & for best

results also fill the pre-wash detergent cup. Run on

normal or heavy cycles not Eco.

Cause of

problem (2)

The product is being over loaded which is preventing

water reaching the cups on the upper cup racks.

How to resolve

the problem

Advise customer of correct loading.

27

Customers Complaint Dishes have blotchy marks on them that look

like water stain marks not food

Cause of

problem

Not enough rinse aid being used. The water is not soft

enough during the final rinse and therefore hard water

droplets containing impurities are drying on the dishes

instead of running off during the dry cycle.

How to resolve

the problem

Confirm that the customer is using rinse aid.

The rinse aid may need to be turned up to a higher

setting (4 or 5 lights) and for optimum dry performance

run the DishDrawer on normal or heavy cycles not Eco.

Check that the rinse aid dispenser is dispensing

correctly in diagnostics.

Customers Complaint Glasses & Cutlery have a Cloudy White film on

them and/or Plates have a White Chalky film on them

Cause of

problem

Hard water & not enough detergent being used.

Minerals from the water are building up on the dishes

or the Water Softener is not set to the correct Water

Hardness Level or is faulty.

How to resolve

the problem

Once this film forms on the dishes it cannot be

removed by normal running in the dishwasher. The

dishes will need to be cleaned by soaking them in an

acidic solution such as white vinegar and water.

Where a Water Softener is not fitted;

To prevent the build up re-occurring the customer will

need to fill both the main-wash & pre-wash detergent

cups to the top with a power detergent and we would

recommend running on normal cycles.

In problem areas with very hard water the customer

may need to use a detergent additive designed for use

in hard water areas or fit a water softener to the

incoming water supply.

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Where a Water Softener is fitted;

Set the Water Softener for the correct local Water

Supply hardness. Check that the Water Softener is

functioning correctly in Diagnostics;

C1 Water Softener Diverter Valve

In hardware output Diagnostics Test Mode

FU – turn the Fill Water Valve on

P2 – turn the Motor Drain on

C1 – Water Softener Diverter Valve

On – water bypasses the resin tank

Off – water flows through the resin tank

C2 Water Softener Brine Pump

Turn the Brine Pump on in Diagnostics mode.

Observe a small quantity of water (approx. 30 ml per

min.) flowing out the bottom of the dispenser. (Drop

the Dispenser Door down to observe this.) Observe a

change in the water level (approximately 120ml per 4

min.) in the Salt Reservoir. The Reservoir should

pump dry of water in this time.

Note:- Fill the Salt Reservoir with Salt (and then water

if not already) before performing this test.

Pipe Interrupter (Air Break) Function

A critical component in the performance of the Water

Softener is the pipe Interrupter (PI). There is a certain

amount of spray leakage from the PI which is used to

provide water to the Salt Reservoir.

If the spray is inadequate, there will be insufficient

water in the Salt Reservoir to make Brine.

If there is too much spray then the excess bypasses

the Water Softener and defeats the softening process

by pouring untreated water into the Tub.

To check that the amount spray leakage is

appropriate:-

29

Fill the Salt Reservoir with water.

In diagnostics mode, Turn on the Fill Water Valve, and

the Motor Drain. Water will flow out of the Dispenser

into the Tub, as well as out of the Water Softener

Overflow into the Tub.

Observe the flow from the Water Softener Overflow

(beside the Dispenser). There should be a trickle (25-

100 ml per minute). With experience you can guess

what is appropriate. If the trickle is outside these rates,

replace the softener as the PI is faulty.

To check that there is water in the Salt Reservoir,

remove the Drawer front and observe the level of water

in the tank. (A quick way to check that there is water in

the Salt Reservoir is to remove the Salt Bung and test

the water level by placing your finger down through the

opening.)

Detergent or Rinse Aid in the Water Softener

If detergent or rinse aid is poured in to the Salt

Reservoir it will destroy the Water Softener. This could

also happen if the Salt Bung is left off or falls out.

Evidence of this could be white streaks through the

Resin.

30

WIRING DIAGRAM

31

WIRING DIAGRAM