LG WD-14331(6)AD, WD-14335AD, WD-12331(6)AD, WD-12331(6)RD, WD-14331(6)RD Service Manual

WASHING MACHINE

SERVICE MANUAL

READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.

MODEL : WD-14331(6)AD

WD-12331(6)AD
WD-14331(6)RD
WD-12331(6)RD
WD-14335AD

CAUTION

FEB. 2005 PRINTED IN KOREA

P/No.:3828ER3044D

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

 APPENDIX (Replacement parts list) ...........................................................................................43

2

ITEM

PO

WER SUPPLY 220V-240V~, 50HZ

PRODUCT WEIGHT 61kg

WASHING 135W

SPIN 530W

FAN MOTOR 25W

DRAIN MOTOR 32W

WASH HEATER 2000W

DRY HEATER 1200W

WASH 45rpm

SPIN

400/600/800/1000/1200/1400 rpm

400/600/800/1000/1200 rpm

OPERATION WATER PRESSURE 0.3-10kgf/cm2(30-1000kPa)

CONTROL TYPE Electronic

WASH CAPACITY 7.0kg (Cotton)

DRY CAPACITY3.5/4.0kg (Cotton)

DIMENSION 600mm(W)550mm(D)850mm(H)

WASH PROGRAM

Cotton, Cotton-Eco, Synthetic, Delicate, Wool/Silk, Hand Wash, Quick 30

OPTION Intensive, Rinse Hold, Rinse+, Pre Wash, Dry

DOOR SWITCH TYPE Bi-Metal type

WATER LEVEL 9 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

3

1. SPECIFICATION

ELECTRICITY

CONSUMPTION

REVOLUTION

SPEED

WD-14331(6)AD, WD-12331(6)AD, WD-14331(6)RD, WD-12331(6)RD, WD-14335AD

WD-14335AD, WD-14331(6)AD, WD-14331(6)RD

WD-12331(6)AD, WD-12331(6)RD

 Automatic process from washing to drying.

Automatic process from washing to drying can be
selected easily.
Washing capacity : 7 kg (Cotton)
Drying capacity : 3.5 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-Lock

The Child-Lock system has been developed to prevent
children from pressing any button to change the program
during operation.

 Low 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.

2-4.THE DOOR CAN NOT BE OPENED

 While program is operating.
 While Door Lock light turns on.

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

S

y

n

t

h

e

t

i

c

W

o

o

l

H

a

n

d

W

a

s

h

D

r

a

i

n

C

o

t

t

o

n
C

E

c

o

Delicate

Q

u

i

c

k

3

0

R

i

n

s

e

+

S

p

i

n

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 APPLIANCE ADJUST THE

BOLTS ON FLAT AND FIRM SURFACE HORIZONTAL

󳢯 Remove the transit bolts 󳢯 Turn the leveling feet to

(4EA:)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

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 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.

Check if the drum rotates Check if water is supplied

clockwise and counterclockwise.

through the detergent
dispenser.

Press the Time Delay and Rinse

Hold buttons simultaneously and
the present temperature will 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

LED display

󳢯Display the estimated remaining time

(Hour : Minute) to finish.

󳢯In case of abnormal operation, error

indications are displayed.

( )

󳢯See troubleshooting guide.

Water temperature selector

󳢯Press the button to select water

temperature.

󳢯95󰿽C is selected for Cotton only.
󳢯By pressing the button while

operating the washer, the present
temperature is displayed.

Wash program selector

󳢯8 program can be set depending on the type of the laundry.
󳢯If the power button is pressed, Cotton program is automatically

set.

󳢯By turning the dial, [Cotton-Synthetic -Wool/Silk-Hand Wash

-

Drain-Rinse+Spin

-

Quick 30-Delicate ]can be selected.

(The opposite is possible)

Start/Pause button

󳢯Use the button to start or

pause wash cycle.

󳢯The power turns off

automatically 4 minutes
after the pause button is
pressed.

• If the laundry is heavily
soiled “Intensive” option
is effective.

• By selecting the
Intensive option, the
wash time may be
extended, depending on
the program selected.

• Is selected by pressing the Rinse Hold
button this function leaves clothes in
the machine; suspended in the water
after a rinse without entering into spin.

• To proceed through to a drain or spin,
once the rinse hold function is
completed using to program dial scroll
to the required program. (Spin)

Intensive Rinse Hold

,,,,,,,,,

11

• For additional rinse
which may assist in
removing traces of
detergent residue.

• By selecting Rinse+
function, the rinse time
and the rinse water are
increased.

• If the laundry is heavily
soiled, “Pre Wash”
course is effective.

• Pre Wash is available in
Cotton and Synthetic.

• If you want Dry, select this button.

• By pressing the botton [Normal – More – Time –
Low Temp. – Less]

Power button

󳢯Press the button to turn

power on and off.

󳢯Press the button to

cancel the delay finish.

Child - Lock

󳢯Child Lock system can be set and

canceled by pressing and holding both
[Rinse+] and [Pre Wash] buttons
simultaneously more than 2 seconds.

󳢯Once Child Lock is set, all buttons

are inoperable except power button.

󳢯Child Lock system can be set

anytime even during Power-off and
operation.

󳢯It is automatically cancelled when an

operational error occur.

Time Delay

󳢯Press the button when delayed washing is

needed.

󳢯When the button is pressed, is displayed,

maximum delay of hours can be set.

󳢯Each press advances time delay by the hour.
󳢯Use [Power] button to cancel [Time Delay]
󳢯[Time Delay] means the time required from the

present to the completion of washing.

Spin button

󳢯By pressing the Spin

button the spin speed
can be chosen.

Rinse

+

Pre Wash Dry

6. WIRING DIAGRAM / PROGRAM CHART

* Basic Cycle
* Optional Cycle
* Pre-Setting Time : Water Supply - 120 sec. * Basic time is minute in washing chart

Drain - 60 sec. * The actual program time can be varied with the load amount,

* ~ Time for varies as the temperature or the amount of laundry water temperature or ambient temperature

Cotton

(95℃)

About 2:05

(2:02)

(1:40)

8

44

~

87

Synthetic

Delicate

Wool/Silk

About 52

About 50

About 1:20

4

18

Drain About 1

Rinse

+ Spin

About

21(18)

4

18

26

~

51

Handwash About 44

4

24

Quick About 30

Cotton(60℃)

About 1:43

8

42

~

44

❋ ( ) : WD-12331(6)AD

12