LG WD-12311RD User manual

WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-1232(0,5)RD
WD-12311RD
CAUTION

NOV. 2006 PRINTED IN KOREA P/No.: MFL30138909

CONTENTS
1. SPECIFICATION............................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION ................................................................................ 4
3. PARTS IDENTIFICATION ............................................................................................................ 6
4. INSTALLATION ............................................................................................................................. 7
5. OPERATION ................................................................................................................................10
6. WIRING DIAGRAM / PROGRAM CHART...................................................................................12
7. TROUBLE SHOOTING................................................................................................................13
7-1.BEFORE SVC CHECKING ..................................................................................................13
7-2.QC TEST MODE..................................................................................................................13
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY.........................................................13
7-4.ERROR DISPLAY ................................................................................................................14
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................16
8-1. DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION ...........................................16
8-2. FAULT DIAGNOSIS AND TROUBLE SHOOTING .............................................................19
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................29
10. EXPLODED VIEW AND PARTS LIST .......................................................................................39
10-1. THE EXPLODED VIEW OF CABINET ASSEMBLY .........................................................39
10-2. THE EXPLODED VIEW OF CONTROL PANEL AND DISPENSER ASSEMBLY ............40
10-3. THE EXPLODED VIEW OF DRUM AND TUB ASSEMBLY .............................................41
10-4. THE EXPLODED VIEW OF DRYER ................................................................................42
2

3
1. SPECIFICATION
ITEM WD-12320RD/WD-12325RD WD-12311RD
PO WER SUPPLY 120V-127V~, 60HZ
PRODUCT WEIGHT 80kg
WASHING 140W
SPIN 300W
FAN MOTOR 25W
DRAIN MOTOR 40W
WASH HEATER 1000W
DRY HEATER 1200W
WASH 45rpm
SPIN 400/800/1000/1200 rpm
OPERATION WATER PRESSURE 0.3-10kgf/cm
2
(30-1000kPa)
CONTROL TYPE Electronic
WASH CAPACITY 11.0kg (Cotton) 10.5kg (Cotton)
DRY CAPACITY 7.0kg (Cotton)
DIMENSION 635mm(W)×740mm(D)×925mm(H)
WASH PROGRAM STNITARY, COTTON/TOWELS, NORMAL, PERM PRESS, DELICATES,
WOOL/SILK, HAND WASH, SPEED WASH, DRAIN+SPIN
DOOR SWITCH TYPE Bi-Metal type
WATER LEVEL 10 steps (by sensor)
RESERVATION From 3 hours to 19 hours
SENSING OF THE LAUNDRY AMOUNT Adapted
FUZZY LOGIC Adapted
DISPLAY OF THE REMAINING TIME Adapted
ERROR DIAGNOSIS 10 items
POWER AUTO OFF Adapted
CHILD LOCK Adapted
AUTO RESTART Adapted
TIME SAVE Adapted
ELECTRICITY
CONSUMPTION
REVOLUTION
SPEED

■Automatic process from washing to drying.
Automatic process from washing to drying can be
selected easily.
■More economical by Intelligent Wash System
Intelligent Wash System detects the amount of load and water
temperature, and then determines the optimum water level and
washing time to minimize energy and water consumption.
■Direct Drive system
The advanced Brushless DC motor rotates the Drum directly
without belt and pulley.
■Child- ock
The Child-Lock system has been developed to prevent
children from pressing any button to change the program
during operation.
■ow noise speed control system
By sensing the amount of load and balance, evenly distributes
load to minimize the spinning noise level.
■Auto Restart
Although the washing machine is turned off by a power failure, it
restarts automatically in its stopped process when power is
supplied again. And it will be the same when the machine
unplugged in operation is plugged in again.
2. FEATURES & TECHNICAL EXPLANATION
4
2-1.FEATURES

2-2.DETERMINE WASHING TIME BY FUZZY LOGIC
To get the best washing performance optimal time is determined by sensing of water temperature,
selected washing temperature and laundry amount.
2-3.WATER LEVEL CONTROL
●This model adopts a pressure sensor which can sense the water level in the tub.
●Water supply is stopped when the water level to the preset level, then washing program proceeds.
●Spinning does not proceed until the water in the tub reduces to a certain level.
5
FUZZY
LOGIC
laundry
amount
selected
washing
temperature
water
temperature
washing time
rinsing time
spin rhythm, time
the best
washing
performance
SENSING PROCESSING DETERMINATION EFFECT

3. PARTS IDENTIFICATION
6
■ACCESSORIES
Spanner

󱀊Before servicing ask troubles of customers
󱀋Check the adjustment(power supply is 120-127V~, remove the transit bolts....)
󱀌Check the troubles referring to the trouble shooting.
󱀍Decide service steps referring to disassembly instructions.
󱀎And then, service and repair.
󱀏After servicing, operate the appliance whether it works O·K or NOT.
■STANDARD INSTALLATION
The appliance should be installed as follows.
REMOVE THE TRANSIT INSTALL THE APPLIANCE ADJUST THE
BOLTS ON FLAT AND FIRM SURFACE HORIZONTAL
󳢯Remove the transit bolts 󳢯Turn the leveling feet to
(4EA:①)with supplied spanner. set the appliance horizontally.
󳢯Keep the transit bolts and
spanner for future use.
󳢯Insert the 4 caps
provided into the hole
󳢯The appliance goes up by
rotating the feet clockwise.
󳢯The appliance come down by
rotating the feet counter
clockwise.
4. INSTALLATION
7
1
2

■HOW TO CONNECT INLET HOSE
󳢯Check that the rubber packing is inside of the
valve connector.
󳢯Connect the inlet hose firmly to prevent leak.
■CONNECT DRAIN HOSE
■CONNECT POWER PLUG
8
·Make sure that the hose is not twisted.
※The drain hose should be placed under 100cm from the floor.
·Connect the power plug to the wall outlet. ·Avoid connecting several electric devices,
It may be the cause of the fire.
·Avoid submerging the end of the hose.

󳞊TEST OPERATION
9
󳢯Connect the power plug to
the outlet. 󳢯In case of Coloreds program.
󳢯Connect the inlet hose.
Preparation for Press the POWER button. Press the Start/Pause
washing. button.
·Press the Temp. 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.
·Power off and then power on.
·Check if the door can be
opened after 3 minutes.
·Turn off Wash and Rinse after
pressing the Start/Pause button
and start the machine again.
·Check drain and spin.
·If SVC is needed during
check, remove
the remaining water by pulling
out the hose cap.
Check the water heating. Check automatic reverse Check the water supply.
turn.
Check drain and spin
Power off and open the Water removal
door

10
5. OPERATION
DELICATES
•Use this button to turn the power
On/Off.
•Rotate the Cycle selector
knob to select the cycle
designed for different
types of fabric and soil
levels.
•Use this option to prev
Press and hold OPTIO
seconds to lock/unlock
•When Child lock is set
buttons are disabled ex
can lock the washer w
•Prewash: Use this option for loads that need pretreatment. It adds 16
minutes prewash and drain.
•Rinse+Spin: Use this option to rinse and then spin.
•Soak: Use this mode to wash normal clothes or think and heavy
clothes which are excessively dirty.
•Spin Only: When you want Spin only, select this option.
•Dry only: When you want Dry only, select this option.
•Use this button to Start/
Stop the washer.
•This display shows:
a) the estimated time remaining in the
cycle when operating.
b) an error code when an error has been
detected.

11
Delay Wash Extra Rinse
•DELAY WASH
WASH/RINSE, SPIN,
SOIL LEVEL Button
•EXTRA RINSE
revent unwanted use of the washer.
TION and WASH/RINSE button for 3
ock control.
set, CHILD LOCK lights and all
d except the Power button. You
r while it is operating.
•This option provides an
additonal rinse.
•Use this option to ensure
the removal of detergent
or bleach residue from
garments.
•Allows the start of any cycle
to be delayed for 3~19
hours.
•Select a water temperature based on the type
of load you are washing.
•To change the spin speed, press the Spin
Speed button repeatedly to cycle through
available options.
•To change the soil level, press the Soil Level
button repeatedly until the desired setting is
on.
•These lights show which portion
of the cycle the washer is
operating.
•Dry programs selected by pressing the Dry button.
•By pressing the button [Normal-More-Time-Low
Temp.-Less] can be selected.

12
6. WIRING DIAGRAM / PROGRAM CHART
Normal
(Min.) (Min.) (Min.)

13
7-1.BEFORE SVC CHECKING
■Be careful of electric shock or disconnecting the parts while trouble shooting.
■Voltage of each terminal in 120-127V~ and DC while applying an electric current.
7-2.QC TEST MODE.
①①Pressing Option, and Spin button simultaneously.
②②Press the Power button, while the above condition.
③③Press the Start/Pause button as follows.
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY
󳢬Press the WASH/ RINSE and Spin button simultaneously.
ex) 241 : Water level frequency = 241×10-1㎑
=24.1㎑
7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR
AT OPERATING CONDITION.
■ Thermistor in tub : Press the [SOIL LEVEL] button.
■ Thermistor in dry duct : Press the [Dry] button.
7. TROUBLE SHOOTING
The digits means water level frequency(10-1 ㎑ )
Number of times the
Start/Pause button is pressed
Check Point Display Status
None Turns on all lamps and locks the door.
1 time Tumble clockwise. rpm (40~50)
2 times Low speed Spin. rpm
3 times High speed Spin. rpm
4 times Inlet valve for prewash turns on. Water level frequency (25~65)
5 times Inlet valve for main wash turns on. Water level frequency (25~65)
6 times Inlet valve for hot water turns on. Water level frequency (25~65)
7 times Inlet valve for dry water turns on. Water level frequency (25~65)
8 times Tumble counterclockwise. rpm (40~50)
9 times
Heater turns on for 3 sec. Water temperature
10 times Circulation pump turns on. Water level frequency (25~65)
11 times
Drain pump turns on. Water level frequency (25~65)
12 times
Dry fan & motor turns on. Water level frequency (25~65)
13 times
Power off and unlock the door. Turn off all lamps.

14
7-5.ERROR DISPLAY.
󳢯If you press the Start/Pause button in error condition, any error except ‘’will disappear and the
machine will change into pause status.
󳢯In case ofde, de, de, if the error is not resolved within 20 sec., and in case of other errors,
if the error is not resolved within 4 min., power will be turned off automatically and the error only will be
blinked. But in case ofde, power will not be turned off.
ERROR SYMPTOM CAUSE
1
2
3
4
5
6
7
•Not reached to the water level(246)within 8
minutes after water supplied or not reached to
the preset water level within 25 minutes.
•Not fully drained within 10 minutes.
•Water is over flowing(over 8 level).
※If is displayed, drain pump operates to
drain water automatically.
•The sensor pressure switch is out of order.
•In case of operating the reservation function or
the other function with door opened. Close the
door, then the error display is resolved.
•The door switch is out of order.
•The appliance is tilted.
•Laundry is gatherd to one side.
•The THERMISTOR is out of order.
WATER INLET
ERROR
DRAIN ERROR
OVERFLOW
ERROR
SENSOR PRESSURE
S/W ERROR
DOOR OPEN
ERROR
IMBALANCE
ERROR
HEATING
ERROR

ERROR SYMPTOM CAUSE
8
9
10
•MAIN PWB ASSEMBLY is out of order
󳢹Replace the MAIN PWB ASSEMBLY
•Winding in the STATOR ASSEMBLY is short-circuited.
󳢹Replace the STATOR ASSEMBLY
•“”is dispplayed during a high spin
󳢹Replace the LEAD WIRE ASSEMBLY (MOTOR)
•The connector in the LEAD WIRE ASSEMBLY is not connected to
the connnector of STATOR ASSEMBLY
󳢹Reconnect or repair the connector
•The hall sensor is out of order/defective.
󳢹Replace the STATOR ASSEMBLY
•The Dry Heater is out of order
󳢹Replace the Dry Heater
•The Connector of the Dry Heater is not connected properly to the
connector in the Main PWB ASSEMBLY
󳢹Reconnect or repair the connector
•The Dry fan motor is out of order
󳢹Replace the fan Motor.
CURRENT
ERROR
MOTOR
ERROR
DRY
HEATOR
ERROR
15

16
8-1.DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION
8. ERROR DIAGNOSIS AND CHECK LIST
SYMPTOM GUIDE FOR SERVICE CALL
NO POWER
Water inlet trouble
YES
YES
YES
NO
NO
YES
NO
NO
No Inlet
Is the power plug connected firmly to
120-127V~ outlet?
Power failure? or Breaker opened?
Visit to check
Is " " displayed?
Is the tap opened?
Is the tap frozen?
Is the water supply shut-off?
Is filter in the inlet valve clogged with
foreign material?
Visit to check
Clean the filter of
inlet valve

17
SYMPTOM
• Door does not open
• Error displayed on
the program
• DRAIN TROUB E
GUIDE FOR SERVICE CALL
NO
YES
NO
YES
Started with door opened?
NO
YES
Is the debris filter clogged with foreign
material such as pin, coin and etc.?
Is the drain hose frozen with water,
kinked or crushed?
Visit to check
Close the door
Visit to check
Check if the door switch is O K.
Is " " displayed?
Clean up
the filter.
.

18
SYMPTOM GUIDE FOR SERVICE CALL
°Suds overflow from the
appliance.
(In this condition, wash and
spin do not operate
normally)
°No effect of softener
YES
YES
YES
YES
YES
Is low-sudsing detergent for the drum
washing machine used?
Is the proper amount of detergent used
as recommended?
Recommend to reduce the using amount
of detergent.
Is softener put in the correct compartment of
the drawer?
Is the drawer closed during wash?
Is the softener cap clogged?
Explain how to use softener
< Clean the compartment for softener >
Visit to check
LOW-SUDSING
󳢮This appliance has the automatic suds sensing function which
operates under much suds condition for good rinse and
preventing overflow.
󳢮When much suds are sensed, suds removing function such as
drain, water input and pause will operate without rotating the
drum.

19
8-2.FAULT DIAGNOSIS AND TROUBLE SHOOTING
1. Be careful of electric shock or disconnecting the parts while trouble shooting.
2. First of all, check the connection of each part terminal with wiring diagram.
3. If you replace the MAIN PWB ASSEMBLY, Put in the connectors correctly.
NO
NO
YES
YES
YES
NO
NO
YES
<PWB ASSEMBLY (MAIN)>
<PWB ASSEMBLY (MAIN)>
Check the fuse?
Replace MAIN PWB
ASSEMBLY
Reconnect the PWB
ASSEMBLY
Reconnect the PWB
ASSEMBLY
When measuring the voltage of the outlet,
is the voltage AC 120-127V~?
Is the led(1) on?
Is connector(2) disconnected or
disassembled?
Is wire of the PWB ASSEMBLY disconnected?
Replace PWB ASSEMBLY
NO POWER
CAUTION