LG WD-1412RD User manual

100
WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-1412RD
WD-14120(5, )RD
WD-12120(5)RD
WD-10120(5)RD
CAUTION

101
MAY. 2002 RINTED IN KOREA /No.:3828ER3008T

CONTENTS
1. S ECIFICATION............................................................................................................................3
2. FEATURES & TECHNICAL EX LANATION ................................................................................ 4
3. ARTS IDENTIFICATION ............................................................................................................ 6
4. INSTALLATION ............................................................................................................................. 7
5. O ERATION ................................................................................................................................10
6. WIRING DIAGRAM / ROGRAM CHART...................................................................................14
7. TROUBLE SHOOTING................................................................................................................15
7-1.BEFORE SVC CHECKING ..................................................................................................15
7-2.QC TEST MODE..................................................................................................................15
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY.........................................................15
7-4.ERROR DIS LAY ................................................................................................................16
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................18
8-1. DIAGNOSIS AND ANSWER FOR ABNORMAL O ERATION ...........................................18
8-2. FAULT DIAGNOSIS AND TROUBLE SHOOTING .............................................................21
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................31
10. EX LODED VIEW AND ARTS LIST .......................................................................................41
10-1. THE EX LODED VIEW OF CABINET ASSEMBLY .........................................................41
10-2. THE EX LODED VIEW OF CONTROL ANEL AND DIS ENSER ASSEMBLY ............42
10-3. THE EX LODED VIEW OF DRUM AND TUB ASSEMBLY .............................................43
10-4. THE EX LODED VIEW OF DRYER ................................................................................44
APPENDIX (Replacement parts list) ...........................................................................................45
2

3
1. SPECIFICATION
ITEM WD-1412RD / WD-14120(5)RD / WD-12120(5)RD / WD-10120(5)RD
PO WER SUPPLY 220V-240V~, 50 Z
PRODUCT WEIG T 71kg
WAS ING 140W
SPIN 300W
FAN MOTOR 25W
DRAIN MOTOR 40W
WAS EATER 2000W
DRY EATER 2100W
WAS 45rpm
SPIN
WD-1412RD/WD-14120(5,6)RD 400/800/1000/1400 rpm
WD-12120(5)RD 400/800/1000/1200 rpm
WD-10120(5)RD 400/600/800/1000 rpm
OPERATION WATER PRESSURE 0.3-10kgf/cm
2
(30-1000kPa)
CONTROL TYPE Electronic
WAS CAPACITY 7.0kg (Cotton)
DRY CAPACITY 4.0kg (Cotton)
DIMENSION 600mm(W)×600mm(D)×850mm( )
WAS PROGRAM
Cotton, Cotton-Eco, Synthetic, Delicate, Wool, and Wash, Quick 30
RINSE Normal / Super / Rinse old
DOOR SWITC TYPE Manual
WATER LEVEL 8 steps (by sensor)
RESERVATION From 3 hours to 19 hours
SENSING OF T E LAUNDRY AMOUNT Adapted
FUZZY LOGIC Adapted
DISPLAY OF T E REMAINING TIME Adapted
ERROR DIAGNOSIS 10 items
POWER AUTO OFF Adapted
C ILD 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.
Washing capacity : 7 kg (Cotton)
Drying capacity : 4 kg (Cotton)
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 EX LANATION
4
2-1.FEATURES
Wash Rinse

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
ROCESSING DETERMINATION
EFFECT

3. ARTS IDENTIFICATION
6
ACCESSORIES
ower plug
Control panel
Door
Lower cover
Adjustable feet
(For detergent and
fabric softener)
Drawer
Drum
Drain hose
Lower cover cap
Drain pump filter
Drain plug
If the supply cord is damaged,
it must be replaced by the
manufacturer or its service agents
or a similarly qualified person in
order to avoid a hazard.
Spanner

Before servicing ask troubles of customers
Check the adjustment(power supply is 220-240V~, 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 A LIANCE ADJUST THE
BOLTS ON FLAT AND FIRM SURFACE HORIZONTAL
Remove the transit bolts Turn the leveling feet to
(3EA: )with supplied spanner. set the appliance horizontally.
Keep the transit bolts and
spanner for future use.
Insert the 3 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
Low
High

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 OWER LUG
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 O ERATION
9
Power
Start/Pause
Power
Connect the power plug to
the outlet. In case of Coloreds program.
Connect the inlet hose.
reparation for ress the OWER button. ress the Start/ ause
washing. button.
ress 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.
ower off and then power on.
Check if the door can be
opened after 3 minutes.
Turn off Wash and Rinse after
pressing the Start/ ause 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 ower off and open the Water removal
door