LG WD-10120FD User manual

100
WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-10120(5)FD
WD-10121(6)FD
WD-12120(5)FD
WD-12121(6)FD
WD-1 120(5)FD
WD-1 121(6)FD
WD-16120(5)FD
WD-16121(6)FD
FWD-12120(5)FD
FWD-1 120(5)FD
FWD-16120(5)FD
DWD-12120(5)FD
DWD-1 120(5)FD
DWD-16120(5)FD
CAUTION
website : http://www.LGEservice.com
e-mail : http://LGEservice.com/techsup.html

101
MAR. 2003 PRINTED IN KOREA P/NO.:3828ER3018E

2
CONTENTS
1. SPECIFICATION............................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION .................................................................................
3. PARTS IDENTIFICATION ............................................................................................................ 6
. INSTALLATION ............................................................................................................................. 7
5. OPERATION ................................................................................................................................10
6. WIRING DIAGRAM / PROGRAM CHART...................................................................................12
7. TROUBLESHOOTING.................................................................................................................13
7-1.BEFORE PERFORMING SERVICE ....................................................................................13
7-2.QC TEST MODE..................................................................................................................13
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY.........................................................13
7- .ERROR DISPLAY ................................................................................................................1
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................16
8-1. DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION ...........................................16
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ..............................................................19
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................25
10. EXPLODED VIEW AND PARTS LIST .......................................................................................32
10-1. THE EXPLODED VIEW OF CABINET ASSEMBLY .........................................................32
10-2. THE EXPLODED VIEW OF CONTROL PANEL AND DISPENSER ASSEMBLY ............33
10-3. THE EXPLODED VIEW OF DRUM AND TUB ASSEMBLY .............................................3
APPENDIX (Replacement parts list) ...........................................................................................35

3
1. SPECIFICATION
ITEM
POWER SUPPLY 220-2 0V~, 50Hz
PRODUCT WEIGHT 65kg
WASHING 230W
SPIN 0W
DRAIN MOTOR 38W
WASH HEATER 2000W
WASH 5rpm
1600 rpm : No spin/ 00/800/1200/1600 rpm
SPIN 1 00 rpm : No spin/ 00/800/1000/1 00 rpm
1200 rpm : No spin/ 00/800/1000/1200 rpm
1000 rpm : No spin/ 00/600/800/1000 rpm
OPERATION WATER PRESSURE 0.3-10kgf/ (30-1000kPa)
CONTROL TYPE Electronic
7kg
Synthetic (3.5kg), Delicate (3.0kg), Wool (2.0kg)
DIMENSION 600mm(W) 600mm(D) 850mm(H)
WASH PROGRAM Cotton-Eco, Cotton, Synthetic,
Delicate, Wool, Hand Wash, Quick 30
RINSE Super, Normal, Hold
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 9 items
POWER AUTO OFF Adapted
CHILD LOCK Adapted
AUTO RESTART Adapted
RAPID Adapted
ELECTRICITY
CONSUMPTION
REVOLUTION
SPEED
WASH CAPACITY
WD-10120(5)FD / WD-12120(5)FD / WD-1 120(5)FD / WD-16120(5)FD
WD-10121(6)FD / WD-12121(6)FD / WD-1 121(6)FD / WD-16121(6)FD
FWD-12120(5)FD / FWD-1 120(5)FD / FWD-16120(5)FD
DWD-12120(5)FD / DWD-1 120(5)FD / DWD-16120(5)FD

4
Jumbo drum
LG’s jumbo drum can wash about 0% more load than
conventional washing machine. A bigger drum improves the
wash performance.
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, automatical
distributes load evenly to minimize the spinning noise level.
uto Restart
Although the washing machine is turned off by a power failure,
it restarts automatically where it stopped when power is
supplied again. And it will be the same the machine is
unplugged and is plugged in again.
2. FEATURES & TECHNICAL EXPLANATION
2-1.FEATURES
40%

5
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 the washing program proceeds.
Spinning does not proceed until the water in the tub reduces a certain level.
2- .THE DOOR CAN NOT BE OPENED
While program is operating.
FUZZY
LOGIC
laundry
amount
selected
washing
temperature
water
temperature
washing time
rinsing time
spin rhythm, time
the best
washing
performance
SENSING
PROCESSING DETERMINATION
EFFECT

6
3. PARTS IDENTIFICATION
Power 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 it's service agents
or a similarly qualified person in
order to avoid a hazard.
Inlet hose Wrench
ACCESSORIES

7
Before servicing ask the customer what the trouble is.
Check the adjustment (power supply is 220-2 0V~, remove the transit bolts....)
Check the troubles referring to the troubleshooting.
Decide service steps referring to disassembly instructions.
Then, service and repair.
After servicing, operate the appliance to see 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
( EA: ) with supplied spanner. set the appliance horizontally.
Keep the transit bolts and
spanner for future use.
Insert the caps
provided into the hole
The appliance goes up by
rotating the feet clockwise.
The appliance comes down by
rotating the feet counter-
clockwise.
. INSTALLATION
1
High
Low

8
HOW TO CONNECT INLET HOSE
Check that the rubber washer is inside of the
valve connector.
Connect the inlet hose firmly to prevent leak.
CONNECT DRAIN HOSE
CONNECT POWER PLUG
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 a fire.
Avoid submerging the end of the hose.

9
TEST OPERATION
Connect the power plug to
the outlet. In case of coloureds 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

11

* Water Supply : WáS * Intermittent Spin : IáS * Disentangle : DáT
*Basic Cycle
* Optional Cycle
* ~ Time for varies as the temperature or the amount of laundry.
* Pre-Setting Time : Water Supply - 120 sec.
Drain - 60 sec.
Wash Rinse Spin
W
á
S
Pre Main
Washing
Drain
I
á
S
W
á
S
Rinse
Washing Staycooling
Heat
Wash
Drain
W
á
S
1 2 3 7654 98 10
Normal (Hold)
Drain
I
á
S
11 12
1
W
á
S
Rinse
13 14
Drain
I
á
S
15 16
2
W
á
S
Rinse
17 18
Drain
I
á
S
19 20
W
á
S
Rinse
21 22
Drain
I
á
S
23 24
W
á
S
Rinse
25 26
Extra (Hold)
Drain
Spin
DáT
A
U
T
O
O
F
F
34
27 28 29 20
E
N
D
20
Cotton
Cotton-Eco
Quick 30
Normal
Working
Time
(Hour:Minute)
About 2:43(2:39)
120 MIN 60 MIN 120300 60120 60 60 300 120 360 60 300 120 360 60 300 120 360 60 300 120 360 60 600 120 20 20
C
Y
C
L
E
S
T
E
P
C
O
U
R
S
E
Time
(SEC)
860
96
About 2:58
About 30
8
HandWash
Delicate
Wool
Wash
Rinse
Rinse Hold
Wash
+ Rinse
12
About 1:07
About 1:01
About 1:00
About 1:03
About 39
23
8
Spin
About 39
About 12
Rinse
+ Spin
Wash
+Spin
About 1:48
About 1:14
About 38
8
8
1
40
29
29
1
1
1
~
96
60
~
60
~
96
60
96
3
TIMES
Synthetic About 1:32
823
59
PROGRAM CHART
* Basic time is minute in washing chart
* The actual program time can be varied with the load amount,
water temperature or ambient temperature
12
6. WIRING DIAGRAM / PROGRAM CHART
* ( ) WD-10120(5)FD / WD-12120(5)FD / FWD-12120(5)FD / DWD-12120(5)FD /
WD-12121(6)FD

13
7. TROUBLESHOOTING
7-1.BEFORE PERFORMING SERVICE
Be careful of electric shock or disconnecting the parts while troubleshooting.
Voltage of each terminal in 220-2 0V~ and DC while applying an electric current.
7-2.QC TEST MODE.
Pressing Rinse, and Spin button simultaneously.
Power supply on with pressing upper two button.Then buzzer sound twice.
Press the Start/Pause button as follows.
Press the Start/Pause button more times until stop spinning
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY
Press the Rinse and Spin button simultaneously.
ex) 2 1 : Water level frequency = 2 1 10-1
=2 .1
The digits means water level frequency (10-1 )
Pressing number of
Start/Pause button
Checking Point Display Status
None All lamps turn on
1 time Clockwise spin (right) Drum rpm (About 0~52)
2 times Low speed Spin Drum rpm (About 55~65)
3 times High speed Spin Drum rpm (About 95~1 0)
times Inlet valve for prewash operation Water level frequency (25~65)
5 times Inlet valve for mainwash operation Water level frequency (25~65)
Hot inlet valve in case of hot water fill
6 times Inlet valve for mainwash operation Water level frequency (25~65)
7 times Counterclockwise spin (left) Drum rpm (About 0~52)
8 times
Heater is in operation for 3 sec. Water temperature
9 times Draining pump operation Water level frequency
10 times
Auto off operation

14
ERROR SYMPTOM CAUSE
1 WATER INLET Water has not reached to the pre-set level within 8 min. since
ERROR inlet valve operated, or water has not reached to the normal
level within 25 min.
Load is too small.
2 IMBALANCE The appliance is tilted.
ERROR Laundry is gathered to one side.
Non-distributable things are put into the drum.
3 DRAIN ERROR Water has not drained enough within 10 min.
OVERFLOW Water is automatically being pumped out because too much
ERROR water is in the tub.
5 SENSOR
PRESSURE The sensor pressure switch is out of order.
S/W ERROR
6 DOOR OPEN The
Start/Pause button is pressed with the door open.
ERROR The door switch is out of order.
7 HEATING
ERROR The THERMISTOR is out of order.
7- .ERROR DISPLAY.
If you press the Start/Pause button when an error in displayed, any error except will disappear and
the machine will change into pause status.
In case of if the error is not resolved within 20 sec. In the case of other errors,
if the error is not resolved within min., power will be turned off automatically and the error only will be
blinked. But in the case of , power will not be turned off.

15
ERROR SYMPTOM CAUSE
8
9
• MAIN PWB ASSEMBLY is out of order
Replace the MAIN PWB ASSEMBLY
• Winding in the STATOR ASSEMBLY is short-circuited.
Replace the STATOR ASSEMBLY
• The connector (3-pin, male, white) in the LEAD WIRE ASSEMBLY
is not connected to the connector (3-pin, female, white) of
STATOR ASSEMBLY.
Reconnect or repair the connector
• The electric contact between the connectors 3-pin, male, white in
the LEAD WIRE ASSEMBLY and -pin, female, natural in the
MAIN PWB ASSEMBLY is bad or unstable.
Reconnect or repair the contact in the connector
• The LEAD WIRE ASSEMBLY between the STATOR ASSEMBLY
and MAIN PWB ASSEMBLY is cut (open circuited).
Repair the damaged (open-circuited) the LEAD WIRE
ASSEMBLY
• The hall sensor is out of order/defective.
Replace the STATOR ASSEMBLY
CURRENT
ERROR
LOCK
ERROR

16
SYMPTOM GUIDE FOR SERVICE CALL
NO POWER
WATER INLET TROUBLE
8-1.DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION
8. ERROR DIAGNOSIS AND CHECK LIST
YES
YES
YES
NO
NO
YES
NO
NO
Is the power plug connected firmly to
220-2 0V~ outlet?
Power failure? or Breaker opened?
Is the outlet controlled by a switch
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 GUIDE FOR SERVICE CALL
DOOR OPEN ERROR
DRAIN TROUBLE
NO
YES
YES
NO
NO
YES
Did you press the Start/Pause button when
the door is open?
Visit to check
Check if the door switch is O.K
Is displayed?
Is the debris filter clogged with foreign
material such as pins, coins, etc?
Is the drain hose frozen with water, kinked,
or crushed?
Visit to check
Close the door
Clean up
the filter.

YES
YES
YES
YES
YES
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
Is low-sudsing detergent for the drum
washing machine used?
Is the proper amount of detergent used
as recommended?
Recommend to reduce the 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
DETERGENT
Compartment for softener
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, the suds removing function such
as drain, water input, and pause will operate without rotating the
drum.

19
8-2.FAULT DIAGNOSIS AND TROUBLESHOOTING
1. Be careful of electric shock or disconnecting the parts while troubleshooting.
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
MAIN PWB ASSEMBLY
MAIN PWB ASSEMBLY
(1)
(2)
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 220-2 0V?
Is the led (1) on?
Is connector (2) disconnected or
disassembled?
Is wire of the PWB ASSEMBLY disconnected?
Replace PWB ASSEMBLY
NO POWER
CAUTION