LG WD-1036(0~9)SD User manual

WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.
website : http: www.LGEservice.com
e-mail : http: LGEservice.com techsup.html
MODEL : WD-1036(0~9)SD
WD-1036(0~9)ND
WD-1036(0~9)TD
WD-1236(0~9)SD
WD-1236(0~9)ND
WD-1236(0~9)TD
WD-1236TD
CAUTION

OCT. 2004 PRINTED IN KOREA P No.:3828ER3035F

CONTENTS
1. SPECIFICATIONS .........................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION ................................................................................ 4
3. PARTS IDENTIFICATION ............................................................................................................ 6
4. INSTALLATION............................................................................................................................. 7
5. OPERATION ................................................................................................................................10
6. WIRING DIAGRAM PROGRAM CHART.....................................................................................12
7. TROUBLESHOOTING.................................................................................................................13
7-1.BEFORE SERVICE..............................................................................................................13
7-2.TEST MODE ........................................................................................................................13
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY.........................................................13
7-4.ERROR DISPLAY ................................................................................................................14
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................15
8-1. DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION ...........................................15
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ..............................................................18
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................24
10. EXPLODED VIEW .....................................................................................................................31
10-1. THE EXPLODED VIEW OF CABINET ASSEMBLY .........................................................31
10-2. THE EXPLODED VIEW OF CONTROL PANEL & DISPENSER ASSEMBLY..................32
10-3. THE EXPLODED VIEW OF DRUM & TUB ASSEMBLY...................................................33
APPENDIX (Replacement parts list).........................................................................................34
2

3
1. SPECIFICATIONS
ITEM
POWER SUPPLY 220-240V~, 50Hz
PRODUCT WEIGHT
WASHING 135W
SPIN (1400rpm) 530W
DRAIN MOTOR 32W
WASH HEATER
WASH 50rpm
SPIN
WD-1036(0~9)SD ND TD No Spin No Drain 400 600 800 900 1000rpm
WD-1236(0~9)SD ND TD No Spin No Drain 400 600 800 1000 1200rpm
OPERATION WATER PRESSURE 0.3-10kgf cm
2
(
30-1000kPa
)
CONTROL TYPE Electronic
DIMENSION
WASH PROGRAM Cotton, Eco, Synthetic, Quick 30, Rinse+Spin, Hand Wash Wool, Delicate, Bedcover, Bio Care, Baby Care
OPTION Medic Care Rinse, Intensive, Rinse +, Pre-Wash, Crease Care
DOOR SWITCH TYPE Bi-Metal type
WATER LEVEL 9 steps
(
by sensor
)
RESERVATION From 3 hours to 19 hours
SENSING OF THE LAUNDRY AMOUNT Available
FUZZY LOGIC Available
DISPLAY OF THE REMAINING TIME Available
ERROR DIAGNOSIS 10 items
POWER AUTO OFF Available
CHILD LOCK Available
AUTO RESTART Available
ELECTRICITY
CONSUMPTION
REVOLUTION
SPEED
WASH CAPACITY
WD-1036(0~9)SD
WD-1236(0~9)SD
56 kg 59 kg 64 kg
3.5 kg 5.0 kg 7.0 kg
600mm(W)x360mm(D)x850mm(H) 600mm(W)x440mm(D)x850mm(H) 600mm(W)x550mm(D)x850mm(H)
Synthetic (1.5kg), Quick 30 (1.0kg),
Hand Wash Wool (1.0kg),
Delicate (1.0kg),
Bedcover (Rating),
Bio Care (Rating), Baby Care (3.0kg)
Synthetic (2.0kg), Quick 30 (1.5kg),
Hand Wash Wool (1.5kg),
Delicate (1.5kg),
Bedcover (Rating),
Bio Care (Rating), Baby Care (4.0kg)
Synthetic (3.0kg), Quick 30 (2.0kg),
Hand Wash Wool (2.0kg),
Delicate (2.0kg),
Bedcover (Rating),
Bio Care (Rating), Baby Care (6.0kg)
2000W 2000W 2100W
WD-1036(0~9)ND
WD-1236(0~9)ND
WD-1036(0~9)TD
WD-1236(0~9)TD
WD-1236TD

Anti Crease function
With the alternate rotation of the drum, creasing in the laundry is
minimized.
More economical by Fuzzy Logic System
FUZZY Logic 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.
Child-Lock
The Child-Lock system has been developed to prevent children
from pressing any button (except Power button) to change the
programme during operation.
Low noise speed control system
By sensing the amount of load and balance, this system
automatically distributes load evenly to minimize the spinning
noise level.
Auto Restart
Auto Restart allows the program to restart all by itself in case of
power failure. It does from the stage where it stopped. It will be
also the same when washer is plugged-in after unplugging.
Direct Drive System
The advanced Brushless DC motor rotates the drum directly
without a belt and a pulley.
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.
When the water level reaches to the preset level the water supply is stopped, then the washing program proceeds.
Spinning does not proceed until the water in the tub reduces 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
rinse time
spin rhythm, time
the best
washing
performance
SENSING PROCESSING DETERMINATION EFFECT

3. PARTS IDENTIFICATION
6
Synthetic
Wool
HandWash
Drain
Cotton
C
Eco
Delicate
Quick30
Rinse+Spin
Start Pause
Rinse Hold
NoSpin
Spin
rpm
1400
1000
Bio
Intensive
Rinse+
Pre Wash
Crease Care
Power
800
600
400
Time Left
ACCESSORIES

Before servicing ask the customer what the trouble is.
Check the adjustments. (Power supply :220~240V, Removal of transit bolts etc..)
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 adjustable feet to
(4EA: ) with supplied wrench. set the appliance horizontally.
Keep the transit bolts and
wrench for future use.
Insert the 4 caps provided
into the hole.
The appliance goes up by
rotating the feet clockwise.
The appliance comes down by
rotating the feet counter-
clockwise.
4. INSTALLATION
7
1
High
Low

HOW TO CONNECT INLET HOSE
Check that the rubber is the inside of valve connector.
Connect inlet hoses 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 a fire.
Avoid submerging the end of the hose.

TEST OPERATION
9
Connect the power plug to In case of cotton program.
the outlet.
Connect the inlet hose.
Preparation for Press the power button. Press the START PAUSE
washing. button.
Press both Time Delay and
Pre Wash buttons simultaneously
the present temperature will be
displayed.
Check if the drum rotates clockwise
and counterclockwise.
Check if water is supplied through
the detergent dispenser.
Power off and then power on.
Check if the door can be
opened after Door Lock lamp
turns off.
Power off and then power on.
Turn on Spin lamps 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

Baby Care Cotton
Eco
Synthetic
Quick 30
Rinse+Spin Start/Pause
Bio Care
Bedcover
Delicate
Hand Wash/
Wool
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.
Eco
It is possible in cotton
course when 60 C
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.
Spin
WD-1036(0~9)SD/1036(0~9)ND/1036(0~9)TD
No Spin No Drain 400 600 800 900 1000
WD-1236(0~9)SD/1236(0~9)ND/1236(0~9)TD
No Spin No Drain 400 600 800 1000 1200
Wash program selector
10 programs can be set
depending on the type of the
laundry.
If the power button is pressed,
all lamps are on
By turning the dial, [Cotton–Eco
Synthetic–Quick 30–
Rinse+Spin–Hand Wash Wool–
Delicate–Bedcover–Bio Care–
Baby Care] can be selected.
(The opposite is possible)

200
No Spin
Crease Care
Pre Wash
Rinse+
Intensive
Medic Care
Rinse
Drecting
Wash
Time Left
Rinse Spin
No Drain
use Spin Power
11
Power button
Press the button to turn
power on and off.
Press the button to cancel
the time delay.
Child - Lock
Child Lock system can be set and canceled by pressing
and holding both Rinse+button and Pre Wash button
simultaneously more than 3 seconds.
Once Child Lock is set, all buttons are not functioning
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.
Option
Medic Care Rinse Function that offers more purity in rinse operation by maintaining the optimum
temperature for elimination of remnant detergent. It can be selected in all courses with
the exception of Quick 30. Hand Wash Wool, Delicate course.
Intensive • 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.
Rinse+If you wish to rinse more, the Rinse+option will remove any trace of detergents.
Pre Wash If the laundry is heavily soiled, “Pre Wash” course is effective.
Pre Wash is available in Cotton and Synthetic Program.
Crease Care If you want to prevent crease, select this button with spin
ime Delay
Press the button when reservation 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.

About 1:39
About 1:16(1:17)
About 51
About 1:28
About 51(52)
About 30
About 17
About 2:21
About 2:24<2:14>
Cotton
Synthetic
Quick 30
Delicate
Bedcover
Bio Care
Baby Care
Hand Wash
Wool
Rinse+Spin
49
360 360 360 360
180 180 180 180 780
34
23
20
11
12
780
780
540
360
540
360
360
160
780
12
6. WIRING DIAGRAM PROGRAM CHART
❋ Medic Care Rinse Function that offers more purity in rinse of feracion by maintaining the optimum temperature for
elimination of remnant detergent. It can be selected in all courses with the exception of Quick
30. Hand wash Wool, Delicate course.
❋ Intensive • 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.
❋ Rinse+If you wish to rinse more, the Rinse+option will remove any trace of detergents.
❋ Pre Wash If the laundry is heavily soiled, “Pre Wash” course is effective.
Pre Wash is available in Cotton and Synthetic Program.
❋ Crease Care If you want to prevent crease, select this button with spin
❋ ( ) : WD-1036(0~9)TD/WD-1036(0~9)ND/WD-1036(0~9)SD
❋ <> : WD-1236(0~9)SD/WD-1036(0~9)SD

7-1.BEFORE PERFORMING SERVICE
Be careful of electric shock or disconnecting the parts while trouble shooting.
Voltage of each terminal in 220-240V and DC while applying an electric current.
7-2.QC TEST MODE.
Press Medic Care Rinse and Rinse+buttons simultaneously.
Press Power with above two buttons pressed and then buzzer will sound.
Press the Start Pause button as follows.
~Press the Start Pause button more 4 times until stop spinning₩
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY
Press the Time Delay and Medic care rinse button simultaneously.
ex) 241 : Water level frequency = 241×10-1kHz
= 24.1kHz
13
7. TROUBLESHOOTING
The digits means water level frequency (10-1 kHz)
Pressing number of
Start Pause button
Checking Point Display Status
None All lamps turn on
1 time Clockwise spin (right) Motor rpm (About 47)
2 times Low speed Spin Motor rpm (About 590~650)
3 times High speed Spin Motor rpm (About 950~1050) :
WD-1036(0~9)S(N)(T)D
Motor rpm (About 1100~1250) : WD-1236(0~9)S(N)(T)D
4 times Inlet valve for pre-wash operation Water level frequency (225~265)
5 times Inlet valve for main-wash operation Water level frequency (225~265)
Hot inlet valve in case of hot water fill
6 times Inlet valve for main-wash operation Water level frequency (225~265)
7 times Counterclockwise spin (left) Motor rpm (About 47)
8 times A Heater is in operation for 3 sec. Water Temperature
9 times Draining pump operation Water level frequency
10 times Auto off operation

14
If you press the [Start Pause] button when an error in displayed, any error except S W ERROR will
disappear and the machine will change into pause status.
In case of if the error is not resolved within 15 sec. 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 the case of , power will not be turned off.
7-4.ERROR DISPLAY.
ERROR SYMPTOM
1WATER INLET
Water has not reached to the pre-set level within
ERROR
4 min. since inlet valve operated, or water has not
reached to the normal level within 25 min.
2IMBALANCE The appliance is tilted.
ERROR Laundry is gathered to one side.
Non distributable things are put into the drum.
3DRAIN ERROR Water has not drained enough within 8 min.
4OVERFLOW 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
6DOOR OPEN The ~Start Pause₩button is pressed with the door open.
ERROR The door switch is out of order.
7HEATING The thermistor is out of order.
ERROR
8CURRENT
ERROR
PWB ASSEMBLY (Main) is out of order
󳢹Replace the PWB assembly (Main)
Winding in the MOTOR is short-circuited.
󳢹Replace the MOTOR
The Connector (3-pin, male, white) in the wire harness is not
connected to the Connector (3-pin, female, white) of MOTOR.
󳢹Reconnect or repair the connector
9
The electric contact between the connectors ~3-pin, male, white in
the wire harness and 6-pin, female, white in the PWB ASSEMBLY
(Main)₩is bad or unstable.
󳢹Reconnect or repair the contact in the connector
The wire harness between the MOTOR and PWB ASSEMBLY
(Main) is cut (open circuited).
The hall sensor is out of order defective.
LOCK
ERROR

15
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
Is the power plug connected firmly to
220-240V~ 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

16
SYMPTOM GUIDE FOR SERVICE CALL
DOOR OPEN ERROR
Refer to
7-4 ERROR DISPLAY
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.

17
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 durm
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
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.

18
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 PWB assembly (Main), put in the connectors correctly.
CAUTION
NO
NO
YES
YES
YES
NO
NO
YES
<PWB ASSEMBLY (MAIN)>
Check the fuse
Check the harness
Assembly.
When measuring the voltage of the outlet,
is the voltage AC 220-240V?
When measuring the voltage of White(3pin)
connector of the PWB assy, is the voltage
AC 220-240V?
Replace PWB assembly.
NO POWER
Cancle the
Child-Lock by pressing
both Rinse+Button and
Pre Wash Button
simultaneously for 3
seconds.
Normal
Is Child Lock set?
First, unplug the power cord and plug again.
Check the buttons are working.
Visit to check
ALL BUTTONS ARE INOPERABLE EXCEPT POWER BUTTON

19
NO
YES
NO
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
NO
YES
option (HOT)
option (HOT)
MAX
max
Is the water supply shut-off?
Is the tap opened?
When you press both Medic care rinse button and
Time Delay button simultaneously, is the water level
frequency below 240?
Is the inlet valve filter clogged with impurity?
Is resistance of the inlet valve connector
between the 2 to 8 kΩ?
Check the voltage between each terminals of
inlet Valve is 220 - 240V~.
(Refer to 7-2 TEST MODE)
Is water supplied?
Are receptacles correctly connected to the
terminals of inlet valve?
Is detergent put in the correct compartment of
the drawer?
Is the detergent caked or hardened?
Open the tap.
Check the chamber (Air)
and the tube clogged
with impurity.
Clean the filter.
Replace the inlet valve.
Replace PWB assembly
Refer to solution
NO INLET
Check the wiring on the
dispenser.
Put the detergent in the
correct position
PRE+MAIN
MAIN WASH
: Detergent
Clean the drawer.
NO WATER SUPPLY
DETERGENT DOES NOT FLOW IN
MAIN
WASH
SOFTENER
PRE -
WASH