LG wd-12436rd
LG wd-12436rd
com
WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL : WD-12436RD
June. 2009 PRINTED IN KOREA P/No.: MFL41950129
CONTENTS
1. SPECIFICATIONS .........................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION ................................................................................ 4
3. PARTS IDENTIFICATION ............................................................................................................ 7
4. INSTALLATION & TEST ............................................................................................................... 8
5. WIRING DIAGRAM/PROGRAM CHART .....................................................................................11
6. OPERATION ................................................................................................................................12
7. TROUBLESHOOTING.................................................................................................................14
7-1. BEFORE PERFORMING SERVICE ...................................................................................14
7-2. QC TEST MODE.................................................................................................................14
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY ......................................................14
7-4. ERROR DISPLAY ...............................................................................................................15
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................17
8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION ........................................17
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ..............................................................20
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................31
10. EXPLODED VIEW .....................................................................................................................40
10-1. CABINET & CONTROL PANEL ASSEMBLY....................................................................40
10-2. DRUM & TUB ASSEMBLY................................................................................................41
10-3. DISPENSER ASSEMBLY .................................................................................................42
10-4. DRYER............................................................................................................................. 43
2
1. SPECIFICATIONS
ITEM WD-12436RD
COLOR TITANIUM
POWER SUPPLY AC 220-240 V, 60 Hz
PRODUCT WEIGHT 91kg
WASHING 280 W
ELECTRIC
POWER DRAIN MOTOR 30 W
CONSUMTION WASH HEATER 2200 W
3
2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES
Water Circulation
Spray detergent solution and water onto the load repeatedly.
Clothes are soaked more quickly and thoroughly during the wash cycle.
Detergent suds are eliminated more easily by the water shower
during rinse cycle. The water circulation system uses both
water and detergent more efficiently.
RollerJets
The washing ball enhances wash performance and reduces
damage to clothing. The jets spray and help tumble clothes to enhance
washing performance while maintaining fabric care.
Built-in Heater
The internal heater automatically heats the water to the optimum
temperature on selected cycles.
ᆺંቚ လ
Child Lock
The Child lock feature prevents children from pressing any buttons
to change the settings during operation.
4
2-2. NEURO FUZZY WASHING TIME OPTIMIZATION
To get the best washing performance, optimal time is determined by the water temperature,
the selected washing temperature, and the size of the load.
water
temperature
washing time
the best
selected
washing NEURO- rinsing time washing
temperature FUZZY performance
spin rhythm, time
load
size
5
2-5. THE DOOR CAN NOT BE OPENED
While program is operating
When a power failed and power plug is taken out in operation
While Door Lock lights turn on.
White the motor is in the process of intertial rotating, through the operation is paused.
6
3. PARTS IDENTIFICATION
Included Accessories
Wrench
(for removing
Cold Water Hose shipping bolts and Elbow Bracket
adjusting leveling feet) (for securing
drain hose)
7
4. INSTALLATION & TEST
Before servicing, ask the customer what the trouble is.
Check the setup (power supply is 220-240V AC, remove the transit bolts....).
Check with the troubleshooting guide.
Plan your service method by referring to the disassembly instructions.
Service the unit.
After servicing, operate the appliance to see whether it functions correctly.
STANDARD INSTALLATION
The appliance should be installed as follows:
8
HOW TO CONNECT THE INLET HOSE
Verify that the rubber washer is inside of the
valve connector.
Tighten the inlet hose securely to prevent leaks.
Make sure that the hose is not twisted. Avoid submerging the end of the hose.
The end of the drain hose should be placed less than 100 cm from the floor.
Connect the power plug to the wall outlet. Avoid connecting several electric devices, as
doing so may cause a fire.
9
7 TEST OPERATION
6 Check the water heating 5 Check the automatic 4 Check the water supply.
function. reverse rotation.
5)@
;7.<-6-:
• Press the WASH/RINSE button • Check if the drum rotates • Check if water is supplied
and the present temperature will clockwise and counterclockwise. through the detergent dispenser.
be displayed.
10
5. WIRING DIAGRAM /PROGRAM CHART
Tub Clean
Sports Wear
Silent
Wool
Drain+spin
Rinse+Spin
Duvet
11
6. OPERATION
• Use this button to turn the power • It shows elapsed time of the cycle the washer
On/Off. is operating.
• Rotate the Cycle selector knob to select the cycle designed for • Use this button to Start/
different types of fabric and soil levels. Stop the washer.
12
Option Button
W A S H R IN S E S P IN DRY
TEMP. SELECTOR
13
7. TROUBLESHOOTING
14
7-4. ERROR DISPLAY
If you press the START/PAUSE button when an error is displayed, any error except will
disappear and the machine will go into the pause status.
In case of if the error is not resolved within 20 sec., or the in case of other errors,
if the error is not resolved within 4 min., power will be turned off automatically and the error code will
blink. But in the case of , power will not be turned off.
DRAIN
3 • Not fully drained within 10 minutes.
ERROR
PRESSURE
5 SENSOR • The SENSOR SWITCH ASSEMBLY is out of order.
ERROR
HEATING
7 • The THERMISTOR is out order.
ERROR
15
ERROR SYMPTOM CAUSE
OVER
• MAIN PWB ASSEMBLY is out of order.
8 CURRENT
• Winding in the STATOR ASSEMBLY is short-circuited.
ERROR
POWER
12 • The washer experienced a power failure.
FAILURE
16
8. ERROR DIAGNOSIS AND CHECK LIST
No power
Is the power plug connected firmly to
220-240V AC outlet?
Visit to service.
Is displayed?
Visit to service.
17
SYMPTOM GUIDE FOR SERVICE CALL
Door error
Visit to service.
Drain trouble
Visit to service.
18
SYMPTOM GUIDE FOR SERVICE CALL
;7.<-6-:
Visit to service.
19
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING
CAUTION
NO POWER
20
VIBRATION & NOISE IN SPIN
Have all the transit bolts and base packing Remove the transit bolts
been removed? and Base packing.
21
If it still has severe vibration and noise, regulate a specific spin speed that generates excessive vibration and
noise as follows:
1) Put an unbalance part (rubber) inside of the drum.
2) Start the QC test mode (Refer to section 7-2).
3) Press Delay Wash button, then ‘ ’ is displayed.
4) Press the Spin Speed button repeatedly to select Extra High.
5) Press the Quick Cycle button, the spin speed is displayed.
6) Press the Start/Pause button.
7) Press the Beeper button repeatedly to set spin speed (600, 800, 1000, 1200 rpm) and check if there is vibration
and noise.
8) If there is no vibration and noise, increase the spin speed by pressing Beeper button.
9) If there is vibration and noise, rotate the Cycle selector knob clockwise to reduce the Spin Speed (reduce by 50
and 100 rpm). In case of 600 rpm, it can not reduce the spin speed.
10) If vibration and noise are reduced, press the Quick Cycle button to store (2 beep sounds).
* If you want to return to factory default spin speed setting, repeat above steps except step 9).
22
NO WATER SUPPLY
Verify the voltage of the inlet valve connector is Check electrical connection.
220-240V AC. Replace the MAIN PWB
(Refer to 7-2 QC TEST MODE) ASSEMBLY.
;7.<-6-:
of the dispenser?
23
LIQUID DETERGENT/SOFTENER DOES NOT FLOW IN
Are the plugs correctly connected to the terminals of Check the wiring on the
the INLET VALVE ASSEMBLY? dispenser.
5)@
Softener
cap
ABNORMAL SOUND
24
HEATING WITHOUT WATER
Check the voltage between two pins while pressing Replace the MAIN PWB
the POWER button. Is the voltage 220-240 V AC? ASSEMBLY.
DRAIN MALFUNCTION
Is the coil of the drain pump too high or low? Replace the DRAIN
(resistance of the coil is 10-20 Ω) PUMP ASSEMBLY.
When checking voltage between connectors during Replace the MAIN PWB
spin, is the voltage 120 V AC as in the figure? ASSEMBLY.
25
WASH HEATER TROUBLE
BL WH BL BK
RD YL
WH
BL WH
SB
WH SB WH
26
WILL NOT CIRCULATE WATER
Are the Hose Connector and/or Hose clogged? Remove foreign material.
Reconnect or repair
Is the connector disconnected, disassembled?
the connector.
Is the coil of the right side of drain pump open Replace PUMP MOTOR
or short circuited? (Coil R is 18-30 Ω) ASSEMBLY.
27
SPIN TROUBLE
Check during spin if the frequency of the water Check the SENSOR SWITCH
level is 248 or more. ASSEMBLY or HOSE (Pressure).
If the problem is on the SENSOR
SWITCH ASSEMBLY or the
HOSE, replace the SENSOR
SWITCH ASSEMBLY or the
When pressing Rinse, Spin, and Power buttons HOSE.
at the same time after powerr, press the
START/PAUSE button 2 times in QC Test mode,
is the drum spinning at low speed? Normal
Is it disconnected, or disassembled?
[Red: 3pin (1), NA: 4pin (2)] Correct the connection.
(1) (2)
28
Replace the thermistor.
Is the resistance of thermistors on dry duct
6322FR2046C : Dry
2.5kΩ - 180kΩ (at 100 ~ 0
Duct
29
30
9. DISASSEMBLY INSTRUCTIONS
Be sure to unplug the machine out of the outlet before disassembling and repairing the parts.
31
Disconnect the POWER connector and SENSOR
SWITCH ASSEMBLY.
Remove the Protect Cover.
32
Disassemble the top plate assembly.
Pull out the drawer.
Push out the DISPENSER ASSEMBLY after
unscrew 2 screws.
Wire Color
Blue Housing (BK-GR/WH)
2
White Housing (BK-WH/BK)
Red Housing (BK-BL/RD)
33
Unscrew the a screw from the Top Bracket.
Disassembly one connector from the Main PWB.
34
Open the door.
Disassemble the clamp assembly.
35
Open the door.
Unscrew the 7 screws from the HINGE COVER.
NOTE
• Reconnect the connector after replacing the
DOOR SWITCH ASSEMBLY.
36
Disassemble the cabinet cover.
CAUTION
• When assembling the heater, insert the
heater into the heater clip on the bottom of
the tub.
• Tighten the fastening nut so the heater is
secure.
37
Disassemble the cabinet cover.
Separate the heater from the tub.
Remove any foreign objects (wire, coin, etc.) by
inserting a long bar in the opening.
38
Disassemble the back cover.
Remove the bolt.
Pull out the Rotor.
NOTE
• Once removed, replace the damper with
new one.
39
10. EXPLODED VIEW
10-1. CABINET & CONTROL PANEL ASSEMBLY
F215
A485
F210
F110
A455 A450
A106
A102 A104 A105
A110 A111
A410 A103
A150
A152 A154
A101
A141
A390
A151 A153
A131 A100
A130 A430
A140
A133
A440
A155
A300
A310
A201
A220
A200
A303
40
10-2.DRUM & TUB ASSEMBLY
F140
K411 K610
K410
K611
K115 F466
K110
K141
K111
K140
F315
K572 F310
K571
F465
F463
K570 K513 K122
F464
K511 K125
K130
K320 K530
K121
K510
K512
K560
K135
K131
K340
F467
K105
K520 K550
F461
K540
K342 K346 K344 F145 F468
41
10-3.DISPENSER ASSEMBLY
F324 F321
F462
F300
F170
F160
F226
F340
F225
F430
F220
F441
F120
HOT (RED)
A275
F130
A276
COLD (BLUE)
F432
42
10-4. DRYER
M111
M110
M120
M100
M121
M230 M210
K311 M215
M240
M130 M101
M220
M312
M310
M311
M260
M235
43