3828EL3001C LG Dryer DLE6942 Service Manual

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DLE5944WM DLE0442-LG-Electric-Dryer-Repair-Service-Manual

2013-04-09

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Page Count: 36

Website:http://www.LGservice.com [For U.S.A]
www.lg.ca [For Canada]
ELECTRIC & GAS DRYER
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
TROUBLES CORRECTLY BEFORE OFFERING SERVICE.
MODEL : DLE0442W DLG0452W
DLE0442S DLG0452S
DLE6942W DLG6952W
DLE5944WM DLG5955WM
DLE2544W DLG2555W
2
To avoid personal injury, disconnect power before servicing this product. If electrical power is required
for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks.
!
WARNING !
WHAT TO DO IF YOU SMELL GAS:
IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by individuals possessing adequate backgrounds
of electrical, electronic, and mechanical experience. Any attempt to repair a major appliance may result in
personal injury and property damage. The manufacturer or seller cannot be responsible for the
interpretation of this information, nor can it assume any liability in connection with its use.
RECONNECT ALL GROUNDING DEVICES
If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are
removed for service, they must be returned to their original position and properly fastened.
IMPORTANT
Electrostatic Discharge (ESD)
Sensitive Electronics
ESD problems are present everywhere. ESD may damage or weaken the electronic
control assembly. The new control assembly may appear to work well after repair is
finished, but failure may occur at a later date due to ESD stress.
Use an anti-static wrist strap. Connect wrist strap to green ground connection point or unpainted
metal in the appliance.
- OR -
Touch your finger repeatedly to a green ground connection point or unpainted metal
in the appliance.
Before removing the part from its package, touch the anti-static bag to a green ground connection
point or unpainted metal in the appliance.
Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only.
When repackaging failed electronic control assembly in anti-static bag, observe above instructions.
■Do not try to light a match, or cigarette, or turn on
any gas or electrical appliance.
■Do not touch any electrical switches. Do not use any
phone in your building.
■Clear the room, building or area of all occupants.
■Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions
carefully.
■If you cannot reach your gas supplier, call the fire
department.
3
1. SPECIFICATIONS ..................................................................................................................4
2. FEATURES AND BENEFITS .................................................................................................... 5
3. INSTALLATION INSTRUCTIONS ........................................................................................... 6
4. COLUMBUS DRYER CYCLE PROCESS .................................................................................... 9
5. COMPONENT TESTING INFORMATION ..............................................................................10
6. MOTOR DIAGRAM AND SCHEMATIC..................................................................................13
7. CONTROL LAY - OUT .........................................................................................................14
8. WIRING DIAGRAM ............................................................................................................15
9. DIAGNOSTIC TEST .............................................................................................................16
9-1. TEST 1 120VAC ELECTRICAL SUPPLY..........................................................................17
9-2. TEST 2 THERMISTOR TEST --- MEASURE WITH POWER OFF .......................................18
9-3. TEST 3 MOTOR TEST ................................................................................................19
9-4. TEST 4 MOISTURE SENSOR ....................................................................................20
9-5. TEST 5 DOOR SWITCH TEST ...................................................................................21
9-6. TEST 6 HEATER SWITCH TEST - ELECTRIC TYPE...........................................................22
9-7. TEST 7 GAS VALVE TEST - GAS TYPE .........................................................................23
10. CHANGE GAS SETTING (NATURAL GAS, PROPANE GAS) ...............................................24
11. DISASSEMBLY INSTRUCTIONS .........................................................................................26
12. EXPLODED VIEW ..............................................................................................................32
12-1. CONTROL PANEL & PLATE ASSEMBLY .......................................................................32
12-2. CABINET & DOOR ASSEMBLY...................................................................................33
12-3-1. DRUM & MOTOR ASSEMBLY : ELECTRIC TYPE ........................................................34
12-3-2. DRUM & MOTOR ASSEMBLY : GAS TYPE ...............................................................35
13. REPLACEMENT PARTS LIST ................................................................................................36
CONTENTS
Equipped
Temperature
Moisture
Equipped
Adopted
Equipped
27" x 42
3/4" x 28 1/3"
29 1/2" x 44 3/4" x 30 3/4"
High / Low / Off
High / Low / Off
High / Low / Off
Equipped
Stainless Steel
Equipped
Sensor
55
5
126 / 144
Door Trim
Top Plate
Color
Chrome ChromeSilver
Porcelain
PorcelainPorcelain
White White
White
Spray
Titanium
120V / 240V 60Hz (26A)POWER SUPPLY
LAMP
HEATER
MOTOR
55
5
999
7.3 cu.ft.
Electronic
15W (125mA)
GAS VALVE
13W (110mA) X 2
5400W (22.5A)
555
250W (4.5A)
ELECTRICITY
CONSUMPTION
White
Material &
Finishes
DLE0442W
DLE5944WM
DLG0452W
DLG5955WM
DLE2544W
DLG2555W
DLE0442S
DLG0452S
DLE6942W
DLG6952W
ITEM
Child lock
Reversible Door
Interior Light
Product (WXHXD)
Packing (WXHXD)
Audible End of Cycle Beeper
Dryer Rack
Drum
No. of Dry Levels
No. of Dry Option
No. of Programs
DRUM CAPACITY
CONTROL TYPE
No. of Temperature Controls
Weight (lbs): Net / Gross
AC 120V
( GAS TYPE)
AC 240V
( ELECTRIC TYPE)
Thermistor
Electro sensor
AC 120V
AC 120V
REMARK
4
SPECIFICATIONS
1
5
FEATURES AND BENEFITS
2
DLE0442W/DLG0452W/DLE0442S/DLG0452S/DLE6942W/DLG6952W/DLE5944WM/
DLG5955WM
DLE2544W/DLG2555W
6
3-1. POWER CORD
INSTALLATION INSTRUCTIONS
3
1) 4-wire connection
1. External ground connector - Dotted line shows
position of NEUTRAL ground wire before being
moved to center terminal block screw
2. Center silver-colored terminal block screw
3. Green wire of harness
1. External ground connector
2. Green or bare copper wire of power supply cord
3. 3/4 in. (1.9 cm) UL-listed strain relief
4. Center silver-colored terminal block screw
5. Neutral grounding wire (green)
6. Neutral wire (white)
5. Connect the other wires to outer terminal block
screws. Tighten screws.
6. Tighten strain relief screws.
7. Insert tab of terminal block cover into slot of dryer
rear panel Secure cover with hold-down screw.
3. Connect ground wire (green or bare) of power
supply cable to external ground conductor screw.
Tighten screw.
4. Connect neutral wire (white or center wire) of
power supply cord to the center, silver colored
terminal screw of the terminal block.
1. 4-wire receptacle (NEMA type 14-30R)
2. 4-prong plug
3. Ground prong
4. Neutral prong
5. Spade terminals with upturned ends
6. 3/4 in. (1.9 cm) UL approved strain relief
7. Ring terminals
1. Remove center terminal block screw.
2. Remove appliance ground wire (green) from
external ground connector screw. Fasten it under
center, silver colored terminal block screw.
IMPORTANT: A 4-wire connection is
required for mobile
homes and where local
codes do not permit the
use of 3 wire connections.
12
3 4 5 7
6
6
5
3
2
14
3
12
7
2) 3-wire connection
Use where local codes permit connecting
cabinet-ground conductor to neutral wire.
1. Remove center terminal block screw.
2. Remove appliance ground wire (green) from
external ground connector screw. Connect
appliance ground wire and the neutral wire (white
or center wire) of power supply cord/cable under
center, silver colored terminal block screw.
Tighten screw.
3. Connect the other wires to outer terminal block
screws. Tighten screws.
Use where local codes permit connecting
cabinet-ground conductor to neutral wire.
3) Optional 3-wire connection
1. Loosen or remove center terminal block screw.
2.
Connect neutral wire (white or center wire) of
power supply cord to the center, silver colored
terminal screw of the terminal block. Tighten screw.
1. External ground connector
2. Neutral grounding wire (green)
3. Center silver-colored terminal block screw
4. Neutral wire (white or center wire)
5. 3/4 in. (1.9 cm) UL-listed strain relief
3. Connect the other wires to outer terminal block
screws. Tighten screws.
4. Tighten strain relief screws.
5. Insert tab of terminal block cover into slot of dryer
rear panel. Secure cover with hold-down screw.
4. Tighten strain relief screws.
5. Insert tab of terminal block cover into slot of dryer
rear panel. Secure cover with hold-down screw.
6. Connect a separate copper ground wire from the
external ground connector screw to an adequate
ground.
1. External ground connector
2. Neutral grounding wire (green)
3. Neutral wire (white or center wire)
4.
Grounding path determined by a qualified electrician
1. 3-wire receptacle (NEMA type 10-30R)
2. 3-wire plug
3. Neutral prong
4. Spade terminals with up turned ends
5. 3/4 in. (1.9 cm) UL approved strain relief
6. Ring terminals
7. Neutral (white or center wire)
3
12
4
4
2
5
13
4
76
5
2
3
1
8
3-2. Connect Gas Supply Pipe (Gas Dryer ONLY)
2
3
5
1
4
1. Make certain your dryer is equipped for use with the
type of gas in your laundry room. Dryer is equipped
at the factory for Natural Gas with a 3/8” N.P.T. gas
connection.
2. Remove the shipping cap from the gas connection
at the rear of the dryer. Make sure you do not
damage the pipe thread when removing the cap.
3. Connect to gas supply pipe using a new flexible
stainless steel connector.
4. Tighten all connections securely. Turn on gas and
check all pipe connections (internal & external) for
gas leaks with a non-corrosive leak detection fluid.
5. For L.P. (Liquefied Petroleum) gas connection, refer
to section on Gas Requirements.
For further assistance, refer to section on Gas Requirements.
1 New Stainless Steel Flexible Connector - Use
only if allowed by local codes (Use Design
A.G.A. Certified Connector)
2 1/8” N.P.T. Pipe Plug
(for checking inlet gas pressure)
3 Equipment Shut-Off Valve-Installed within 6’
(1.8 m) of dryer
4 Black Iron Pipe
Shorter than 20’ (6.1 m) - Use 3/8” pipe
Longer than 20’ (6.1 m) - Use 1/2” pipe
5 3/8” N.P.T. Gas Connection
9
Time
COLUMBUS DRYER CYCLE PROCESS
4
Cycle
Heavy Duty
3Hr
3Hr
Off Time: 6min
On Time: 10sec
Temperature Control for each cycle
High
Medium
High
Medium
Low
Low
Extra
low
(High)
(Medium
High)
Cotton/
Towel
Normal
Perm.
Permanent
Press
Delicate
Ultra
Delicate
Speed dry
Freshen Up
Air dry
-
(Normal)
(Normal)
(Normal)
(Normal)
(Normal)
(Normal)
-
-
-
54min Saturation
Saturation
Saturation
Saturation
Saturation
Saturation
Saturation
Saturation
55min
41min
36min
32min
34min
25min
20
min
30
min
(5min)
(5min)
(5min)
(5min)
(5min)
(5min)
(5min)
(5min)
N/A
70±5°C
66±5°C
62±5°C
55±5°C
55±5°C
45±5°C
(70±5°C)
(66±5°C)
No
heater
47±5°C
47±5°C
47±5°C
47±5°C
38±5°C
38±5°C
(47±5°C)
(47±5°C)
N/A
Saturation
Load
Sense
Dry *
Manual
Dry **
Default
Drying
Electro-
sensor
Temp-
Control
Default
time
Temp-
Control **
Cooling Wrinkle care
Conditions of operation and termination
Temp-
erature
Dry
Level
Display
time
Motor
Heater
* Sense dry : “Dry Level” is set by users.
** Manual dry : “Temperature control” is set by users.
Default settings can be adjusted by users.
10
When checking the Component, be sure to turn the power off, and do voltage discharge sufficiently.
COMPONENT TESTING INFORMATION
5
!
CAUTION
Component Test Procedure Check result Remark
1. Thermal cut off
• Check Top Marking :
N130
Measure resistance of terminal
to terminal
󲾩Open at 284 ±12°F
(140 ±7°C)
󲾪Auto reset -31°F (-35°C)
Same shape as Outlet Thermostat.
If thermal fuse is open must
be replaced
󲾩Resistance value ≒∞
󲾪Continuity (250°F ) < 1Ω
• Heater case-
Safety
• Electric type
2. Hi limit Thermostat
(Auto reset)
Measure resistance of terminal
to terminal
󲾩Open at 257 ±9°F
(125 ±5°C)
󲾪Close at 221 ±9°F
(105 ±5°C)
󲾩Resistance value ≒∞
󲾪Resistance value < 5Ω
• Heater case -
Hi limit
• Electric type
3. Outlet Thermostat
( Auto reset)
• Check Top Marking :
N85
Measure resistance of terminal
to terminal
󲾩Open at 185 ±9°F
(85 ±5°C)
󲾪Close at 149 ±9°F
(65 ±5°C)
Same shape as Thermal cut off.
󲾩Resistance value ≒∞
󲾪Resistance value < 5Ω
• Blow housing -
Safety
• Electric type
4. Lamp holder Measure resistance of terminal
to terminal
Resistance value :
80Ω ~ 100Ω
6. Idler switch Measure resistance of the
following terminal :
“COM - NC”
1. lever open
󲾩Resistance value < 1Ω
2. Lever push (close)
󲾪
Resistance value ≒∞
5. Door switch Measure resistance of the
following terminal
1) Door switch knob : open
󲾩Terminal : “COM” - “NC” (1-3)
󲾪Terminal : “COM” - “NO” (1-2)
2) Door switch push : push
󲾩Terminal : “COM” - “NC” (1-3)
󲾪Terminal : “COM” - “NO” (1-2)
󲾩Resistance value < 1Ω
󲾪Resistance value ≒∞
󲾩Resistance value ≒∞
󲾪Resistance value < 1Ω
The state that
Knob is
pressed is
opposite to
Open
condition.
11
Component Test Procedure Check result Remark
7. Heater Measure resistance of the
following terminal
󲾩Terminal : 1 (COM) - 2
󲾪Terminal : 1 (COM) - 3
󲾫Terminal : 2 - 3
󲾩Resistance value : 10Ω
󲾪Resistance value : 10Ω
󲾫Resistance value : 20Ω
• Electric type
8. Thermistor Measure resistance of terminal
to terminal
Temperature condition :
58°F ~ (10~40°C)
58°F ~ 104F (10~40°C)
Resistance value : 10Ω • Heater case -
Hi limit
• Electric type
9. Motor • See Page 13
10. Gas valve valve 1
valve 2
Measure resistance of the
following terminal
󲾩Valve 1 terminal
󲾪Valve 2 terminal
󲾩
Resistance value : > 1.5kg ~
󲾪
Resistance value :
>
1.5~2.5kg
• Gas type
11. Igniter Measure resistance of terminal
to terminal
Resistance value : 100~800Ω • Gas type
12. Frame Detect Measure resistance of terminal
to terminal
󲾩Open at 370°F ((Maximum)
󲾪Close at 320°F
󲾩Resistance value ≒∞
󲾪Resistance value < 1Ω
• Gas type
12
Component Test Procedure Check result Remark
13. Hi-limit Thermostat
(Auto reset)
• Check Top Marking :
N95
Measure resistance of terminal
to terminal
󲾩Open at 203 ±7°F (95 ±5°C)
󲾪Close at 158 ±9°F (70 ±5°C)
󲾩Resistance value ≒∞
󲾪Continuity < 1Ω
• Gas type
• Gas funnel-
Hi-limit
13. Thermal Cut off
(Manual reset)
• Check Top Marking :
N110
Measure resistance of terminal
to terminal
󲾩Open at 230 ±12°F
(110 ±7°C)
󲾪Manual reset
If thermal fuse is open must
be replaced
󲾩Resistance value ≒∞
󲾪Continuity < 1Ω
• Gas type
• Gas funnel-
Safety
13
MOTOR DIAGRAM AND SCHEMATIC
6
Contact On / Off by Centrifugal Switch
STOP MODE
(When Motor does not operate)
RUN MODE
(Motor operates)
When checking Component, be sure to turn Power off, then do voltage discharge sufficiently.
NOTE
Centrifugal switch Centrifugal switch
(Pull Drive forward)
14
CONTROL LAY -OUT
7
PWB ASSEMBLY DISPLAY LAY-OUT
PWB ASSEMBLY LAY-OUT
MODEL DISPLAY AS DIAGNOSTIC TEST
MODEL
DLE0442W/S / DLE6942W
DLE5944WM
DLG0452W/S / DLG6952W
DLG5955WM
DLE2544W
DLG2555W
OP 1
O
O
X
X
OP 2
X
X
O
O
OP 3
X
O
X
O
OP 4
X
X
X
X
OP 5
X
X
X
X
OP 6
X
X
X
X
6871EC2123B
6871EC2123C
6871EC2123E
6871EC2123F
18:23
19:23
18:25
19:25
OPTION PART LED
DISPLAY P/No
15
ELECTRIC DRYER WIRING DIAGAM
WIRING DIAGRAM
8
GAS DRYER WIRING DIAGAM
DLE5944WM
BLUE
ORANGE
DLG5955WM
16
ACTIVATING THE DIAGNOSTIC TEST MODE
1. Unit must be in Standby (unit plugged in, display off)
2. Press “POWER” while pressing “MORE TIME”, and “LESS TIME” simultaneously.
DIAGNOSTIC TEST
9
Pressing the
“START/PAUSE”
button
CHECKING
ACTION DISPLAY CHECKING POINT REMARK
None
Once
Electric control
&
Temperature
sensor
Motor
Won’t power up
Defective LED
Thermistor open
Thermistor close
Motor runs
Displays Moisture Sensor Operation:
If moisture sensor is contacted with
damp cloth. The display number is
below 180, in normal condition.
70 ~ 237
Measured
Moisture Value.
Twice
■
ELECTRIC TYPE
Motor + Heater 1
(1250W)
■
GAS TYPE
Motor + Valve
Current Temp.
■
ELECTRIC TYPE :
Heater runs
■
GAS TYPE :
GAS Valve runs
(Display the Temperature of
Inside drum.)
During check,
If the door is closed.
Motor & Heater Off
+ Lamp Off 70 ~ 237 Return once “1time”
(See test 4) state.
4 times Control Off Auto Off
3 times
■
ELECTRIC TYPE
Motor + Heater 1
+ Heater 2
(5400W)
■
GAS TYPE
Motor Type
Current Temp.
(5 ~ 70)
See test 5
Off
automatically
after 5
minutes
In normal state if displayed
temp. is increasing.
Temperature in 4min : 113°F (45°C)
• Above : 1” on , 1” off beep sound
• Under : 0.5” on, 0.5”
off beep sound
During check,
If the door is open.
Motor & Heater Off
+ Lamp On +
Buzzer beeps five
times
Door switch See test 6
Lamp
See test 1
Display : See page
See test 2
See test 3
See test 4
Gas valve
See test 7
1. This TEST should be used for Factory test /Service test. Do not use this DIAGNOSTIC TEST other than
specified.
2. Activating the Heater manually with the Door open may trip the Thermostat attached to the Heater, therefore do
not activate it manually. (Do not press the door switch to operate the heater while the door is open )
17
Test 1 120VAC Electrical supply
Caution
Trouble Symptom
Measurement Condition
When measuring power, be sure to wear insulated gloves, to and avoid an
electric shock.
No power was applied to Controller. (LED, Display off)
With Dryer Power On; Connector linked to Controller.
Check the outlet, is the voltage
110V ~ 125V AC?
YES
NO • Check the fuse
or circuit breaker.
Check if the voltage measured between
Connector “RD3- ” (Black) linked to the
Controller and “WH3- ”(White) is
110V ~ 125V?
YES
NO
• Check if Power
Cord is properly
connected.
• Reconnect the
controller.
Replace controIler.
Check if the Controller wire is
disconnected.
Check if Terminal Block and Power Cord
are connected (Check Plug ).
- Does Power Cord N( Natural) line match
to Terminal Center N(Natural) line?
YES
NO
L (Black) L (Led)
N(White)
18
Test 2
Thermistor Test --- Measure with Power Off
Caution
Trouble Symptom
Measurement Condition
Before measuring resistance, be sure to turn Power off, and do voltage discharge.
(When discharging, contact the metal plug of Power cord with the Ground.)
During Diagnostic Test, tE1 and tE2 Error occur.
During operation, Heater would not turn off, or remains on.
Difference between actual and sensed temperature is significant.
After turning Power off, measure the resistance.
Check if resistance is in the range of Table 1
when measuring 6pin connector Pin
(Blue wire) and Pin (Red wire) connected
to Controller.
NO
YES
• Check if Control
and 6Pin
connector is
properly
connected.
• Replace
Controller.
Check Harness-linking connector.
Take 6pin Connector from
the Controller.
Table 1. Resistance for Thermistor Temperature.
Check if resistance is in the range of Table 1
when measuring resistance between
terminals after separating Harness
From Thermistor assembly Connector.
YES
NO • Replace
Thermistor.
Air TEMP.[°F (°C)]
50°F (10°C)
60°F (16°C)
70°F (21°C)
80°F (27°C)
18.0
14.2
11.7
9.3
90°F (32°C)
100°F (38°C)
110°F (43°C)
120°F (49°C)
7.7
6.2
5.2
4.3
130°F (54°C)
140°F (60°C)
150°F (66°C)
160°F (71°C)
2.9
3.0
2.5
2.2
RES. [kΩ]
Air TEMP.[°F (°C)]
RES. [kΩ]
Air TEMP.[°F (°C)]
RES. [kΩ]
19
Test 3 Motor test
Caution
Trouble Symptom
Measurement Condition
Before measuring resistance, be sure to turn Power off, and do voltage discharge.
(When discharging, contact the metal plug of Power cord with earth line.)
Drum will not rotate; No fan will function; No Heater will work.
Turn the Dryer’s Power Off, then measure resistance.
Is resistance below 1Ω between Idler Switch
terminals?
YES
NO
Does Idle Switch attached to Motor Bracket
operate Level by drum belt?
(Not operating Lever is normal.)
YES
• Replace Idler
Switch.
• Check Idler Assembly.
• Drum Belt cuts off
• Drum Belt takes off
from
• Motor Pulley.
Is resistance below 3Ω between Connector
“WH3- ” (White wire) and “BL2- ” (Yellow wire)?
※Measure while door is closed.
YES
NO
• Check if Door flame
presses door switch
knob.
• Check Door Switch.
• Check Harness
connection.
Is resistance below 3Ω between Connector
“BL2- ” (Yellow wire) and “BL2- ” (Brown wire)?
NO
YES
• Replace Control.
(Relay check)
• Check Controller
connector.
Is resistance below 1Ω between terminals
of Outlet Thermostat attached to blower housing?
YES
NO
• Replace Outlet
• Thermostat.
(Refer to
‘Component’)
Is resistance below 3Ω between Connector
“WH3- ”(White wire) and “BL2- ” (Brown wire)?
※Measure while door is closed.
NO
YES
• Replace Control.
(Relay check)
• Check Controller
connector.
• Check Motor.
(Refer to ‘Motor Diagram & Check’)
•
Check if Control Connector is contacted.
Idler Switch Lever
Idler Switch
20
Test 4 Moisture sensor
Caution
Trouble Symptom
Measurement Condition
Before measuring resistance, be sure to turn Power off, and do voltage discharge.
(When discharging, contact the metal plug of Power cord with earth line.)
Degree of dryness does not match with Dry Level.
Turn the Dryer’s Power Off, then measure resistance.
Normal Condition
Damping cloth
Metal or Wire
Table 2. IMC Ratio and Display Value / Voltage (IMC : Initial Moisture Content)
IMC
70% ~ 40%
40% ~ 20%
10% ~ Dried clothes
50 ~ 130
100 ~ 20
205 ~ 240
2.5V
2.0V ~ 4.0V
Over 4.0V
Weight after removing from
Washing Machine
Damp Dry
Completely-dried clothes
Display Value
Voltage(DC) (between 6Pin terminal )
Remark
Short with metal to 6pin connector’s Pin
(BLUE wire) and Pin (ORANGE wire)
to Controller.
When measuring resistance in Electric load,
is resistance below 1Ω?
YES
NO
When contacting cloth to Electro load:
1. Is the measurement within the range of Table 2
during Diagnostic Test?
2. Is the measurement within the range of Table 2
when measuring the voltage in 6pin connector’s
Pin (BLUE wire) and Pin (ORANGE wire)?
YES
NO • Replace Control
and Check.
• Check Electro Load
and
• Harness Connector.
• Check Harness-
linking connector.
Take 6pin Connector from
the Controller.
21
Test 5 Door switch test
Caution
Trouble Symptom
Measurement Condition
Before measuring resistance, be sure to turn Power off, and do voltage discharge.
(When discharging, contact the metal plug of Power cord with earth line.)
Door Opening is not sensed.(During operation, when opening Door, Drum motor and
Heater run continuously; Door Close is not sensed.
(Drum motor will not operate. Display will flash at 0.5 second intervals.)
After turning Dryer Power Off, measure resistance.
Check Controller.
Check Harness-linking connector.
Measure while Door is closed. Check if
resistance is below 250Ω between “WH3- ”
(White wire) and “RD3- ”(Black wire)
Connector WH3, RD3 after taking WH3, RD3
out from Controller.
NO
YES
• Door switch
Check (Refer to
Component
testing.)
Measure while Door is open. Check if
resistance is 300~60Ω between “WH3- ”
(White wire) and “RD3- ” (Black wire)
Connector WH3, RD3 after taking WH3, RD3
out from Controller.
YES
NO
• Check Lamp.
(When opening
Lamp, replace then
measure again.)
• Door switch
Check(Refer to
Component
testing.)
Measure while Door is open. Check if
resistance is below 1Ω between “BL2- ”
(Yellow wire) and “WH3- ” (White wire) after
taking Connector WH3, BL2 out from Controller.
NO
YES
• Door switch
Check (Refer to
Component
testing.)
Measure while Door is closed. Check if
resistance is below 1Ω between “BL2- ”
(Yellow wire) and “WH3- ” (White wire) after
taking Connector WH3, BL2 out from Controller.
YES
NO
• Door switch
Check (Refer to
Component
testing.)
22
Test 6 Heater switch test - Electric Type
Caution
Trouble Symptom
Measurement Condition
Before measuring resistance, be sure to turn Power off, and do voltage discharge.
(When discharging, contact the metal plug of Power cord with earth line.)
While operating, Heating will not work.
Drying time takes longer.
After turning Power off, measure the resistance.
Check Controller.
Check Harness-linking Connector.
Check Motor. Check if the value of measured
resistance is below 1Ω between terminal
and at RUN condition.
YES
NO • Check Motor and
replace it.
1. Is resistance between Heater terminal
and below 18 ~ 22Ω?
2. Is resistance between Heater terminal
and below 18 ~ 22Ω?
3. Is resistance between Heater terminal
and below 9 ~ 11Ω?
YES
NO • Replace Heater.
Check if the value of measured resistance is
below 1Ω between terminal TH2 (Safety Thermostat).
YES
NO • Replace TH2
(Safety Thermostat)
.
Check if the value of measured resistance is below
1Ω between terminal TH3 (HI-Limit Thermostat).
YES
NO
• Replace TH3
(HI-Limit Thermostat)
.
TH3 TH2
23
Test 7 GAS Valve test - Gas Type
Caution
Trouble Symptom
Measurement Condition
When measuring power, be sure to wear insulated gloves, to avoid electric shock.
While operating, Heating will not work.
Drying time takes longer.
With dryer power on
• Harness check
• Controller change
When measuring terminal resistance on “Valve 1”,
“Valve 2”, Value is more than1.5 ~ 2.5kΩ?
(Measure after Off )
NO
YES • Change Valve
• Check thermostat
Hi limit Safety
Igniter operates?
(after 1 min, Igniter becomes reddish)
YES
NO • Check Igniter &
Frame detect
When measuring Valve 2 voltage, Value is more
than AC 90V? (10 sec after Igniter off)
NO
YES
• Check Gas
connection or
Gas supply
When measuring Valve 1 voltage,
More than AC 90V?
YES
NO
Power On & Start (Normal Cycle)
NO
Igniter
Valve 2
Valve 1
24
After Natural Gas Setting, applying Propane Gas Orifice or wrong use of Natural Gas
Orifice will result in fire. Conversion must be made by a qualified technician.
Initially, Natural Gas mode is set. Propane Gas Orifice is on sale as a Service
Part to authorized servicers only.
CHANGE GAS SETTING (NATURAL GAS, PROPANE GAS)
10
!
Warning
STEP 1 : VALVE SETTING
Full open
“Change screw”
STEP 2 : ORIFICE CHANGE
Orifice
Gas type
Natural Gas
Propane Gas
Marking
NCU
PCU
Shape
Orifice P/No
4948EL4001B
4948EL4002B
Close
“Change screw”
Remove 2 screws.
Disassemble the pipe assembly.
Replace Natural Gas orifice with Propane Gas orifice.
Kit contents : Orifice (Dia. = 1.613mm, for Propane Gas)
: Replace Label
: Instruction sheet
25
GAS IGNITION
START
GAS IGNITION
ON
ON OFF
OFF ON
CLOSE
VALVE 1
IGNITER
VALVE 2
FRAME
DETECT OPEN
GAS VALVE STRUCTURE
GAS VALVE FLOW
START KEY PUSH
DRYING
“VALVE 1” ON
“VALVE 2” ON
IGNITE ON
FRAME DETECT OPEN
IGNITE OFF
IGNITE
TEMPERATURE ABOUT
370”F
GAS IGNITION
FRAME DETECT CLOSE
“VALVE 2” OFF
NO
NO
YES
YES
26
󳀌Disassemble and repair the unit only after pulling out power plug from the outlet.
DISASSEMBLY INSTRUCTIONS
11
1. Remove 3 screws on the rear Panel.
2. Pull the control panel forward.
3. Open the cover protect.
4. Disconnect connectors.
5. Remove 5 screws.
6. Disassemble the controller assembly.
27
1. Push backward using an opener and lift
the top plate.
7cm
7cm
1. Open the top plate.
2. Open the door, Remove 2 screws.
3. Remove 2 screws form upper side.
4. Pull the Cover Cabinet.
5. Disconnect the door switch connector.
28
1. Open the top plate.
2. Remove Cover Cabinet.
3. Disconnect the door lamp and electro
sensor connector.
4. Remove 4 screws.
5. Disassemble the Tub Drum [Front].
1. Open the top plate.
2. Remove the Cover Cabinet and
Tub drum [front].
3. Disengage belt from motor and idler pulleys.
4. Carefully remove Drum out through front of dryer.
-1
-2
-1
1. Open the door.
2. Remove the screw holding the drum lamp shield
in place.
3. Slide the shield up and remove.
4. Remove the bulb and replace with a 15 watt,
120 volt candelabra-base bulb.
5. Replace the lamp shield and screw.
29
1. Remove screw & exhaust duct.
PORTION “A”
DUCT
TAPE
DUCT
TAPE
DUCT
TAPE
3. Reconnect the new duct[11 in(28cm)] to the
blower housing, and attach the duct to the base.
2. Detach and remove the bottom, left or right side
knockout as desired.
4. Pre-assemble 4" elbow with 4" duct.
Wrap duct tape around joint.
5. Insert duct assembly, elbow first, through the side
opening and connect the elbow to the dryer
internal duct.
30
1. Remove the filter.
2. Remove 3 screws.
3. Pull the grill.
4. Disconnect electro sensor.
1. Open the top plate.
2. Remove the Cover Cabinet and Tub Drum [Front].
3. Remove the Drum assembly.
4. Remove 2 screws and cover(Air guide).
5. Remove the bolt and washer.
6. Pull the fan.
7. Disconnect the motor clamp and motor.
1. Open the top plate.
2. Remove the Cover Cabinet and Tub Drum [Front].
3. Remove the Drum assembly.
4. Remove 7 screws.
5. Pull the Tub Drum [Rear] towards the front.
31
1. Open the top plate.
2. Remove the Cover Cabinet.
3. Remove filter and 2 screws.
4. Pull the air duct towards the front.
1. Open the top plate.
2. Remove the Cover Cabinet and Tub Drum [Front].
3. Remove the Drum assembly and Tub Drum [Rear].
4. Disconnect Air duct from the Tub Drum [Front].
5. Remove the roller from the Tub Drum [Front]
and Tub Drum [Rear].
32
EXPLODED VIEW
12
12-1. Control Panel & Plate Assembly
A120
A140
A570
A130 A150
A210
A215
A211
A110
A600
A550
33
12-2. Cabinet & Door Assembly
A310
A700 A800
A330
A340
A300
A305
A320
A500
A510
A430
A212
A460A410A450
A420
A400
A520
A535
A540
34
12-3-1. Drum & Motor Assembly : Electric Type
K640
K120
K140
K400
F200
K310
K610
K620
K330 K340
K130
K100
K221
K222
K230
K210
K350
K240
F130
F110
F140
K510
K540
K650
K651
K600
K530
K520
K550
K360
K560
K320
K250 K251
K250
F120
K251
35
12-3-2. Drum & Motor Assembly : Gas type
M210
M180
M160
M170
M171
M140
M240
M150
M141
M220
M230
M110
M181
M190
K640
K120
K140
K400
F200
K310
K610
K620
K330 K340
K130
K100
K221
K222
K230
K210
K350
K240
K510
K540
K650
K651
K600
K530
K520
K550
K360
K560
K320
M250
K250 K251
K250
K251
※M171 : Propane Gas orifice
M170 : Natural Gas orifice
MAY 2005 PRINTED IN KOREA
P/No.:3828EL3001C

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