LG WD-3274RHD User manual

WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE
TROUBLECORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-3274RHD / WD-3276RHD
CAUTION
Website:http://www.LGEservice.com [For U.S.A]
www.lg.ca [For CANADA]
E-mail:http://www.LGEservice.com/techsup.html

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. TROUBLESHOOTING.................................................................................................................13
7-1.BEFORE PERFORMING SERVICE....................................................................................13
7-2.QC TEST MODE..................................................................................................................13
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY.........................................................13
7-4.ERROR DISPLAY................................................................................................................14
8. ERROR DIAGNOSIS AND CHECK LIST....................................................................................16
8-1. DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION...........................................16
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ..............................................................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

3
1. SPECIFICATION
ITEM WD-3274RHD / WD-3276RHD
PO WER SUPPLY 120V~, 60Hz
PRODUCT WEIGHT 156
1/2
lbs. (71 kg)
WASHING 140W
SPIN 300W
FAN MOTOR 25W
DRAIN MOTOR 40W
WASH HEATER 1000W
DRY HEATER 1200W
WASH 45rpm
SPIN No spin/400/800/1000/1400 rpm
OPERATION WATER PRESSURE 4.5 ~ 145 PSI (30 ~ 1000 KPa)
CONTROL TYPE Electronic
WASH CAPACITY 15
2/5
lbs. 7.0 kg
DRY CAPACITY3.0kg 8
4/5
lbs. 4.0 kg
DIMENSION 23
5/8
x 23
5/8
x 33
1/2
in.(600 x 600 x 850mm)
WASH PROGRAM Cotton, Perm. Press, Wool/Silk, Rinse+Spin, Sanitary
WASH/DRY PROGRAM Cotton, Perm. Press, Rinse+Spin, Sanitary
OPTION Dry only, Extra Rinse, Extra Wash
DOOR SWITCH TYPE Bi-Metal type
WATER LEVEL 8 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
RAPID Adapted
ELECTRICITY
CONSUMPTION
REVOLUTION
SPEED

Automatic process from washing to drying.
Automatic process from washing to drying can be
selected easily.
Washing capacity : 15 5/2lbs.¡c7.0 kg¡d
Drying capacity : 8 4/5lbs.¡c4.0 kg¡d
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, automaticaly
distributes load evenly to minimize the spinning noise level.
Auto 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 if the machine
unplugged and is plugged in again.
2. FEATURES & TECHNICAL EXPLANATION
4
2-1.FEATURES
SPIN TIME DELAY

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.
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
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 its service agents
or a similarly qualified person in
order to avoid a hazard.
Inlet hose(1 each) Wrench

Before servicing ask trouble the customer, what the trouble is.
Check the adjustment (power supply is 120V~ 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 OKor 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
(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 counterclockwise.
4. INSTALLATION
7
1
2

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
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
POWER
START/PAUSE
POWER
Connect the power plug to In case of Coloureds program.
the outlet.
Connect the inlet hose.
Preparation for Press the power button. Press the Start/Pause
washing. button.
Press the button TEMP. Check if the drum rotates Check if water is supplied
and the present temperature clockwise and through the detergent
will be displayed. counterclockwise. dispenser.
Power off and then power on.
Check if the door can be
opened after 3 minutes.
Turn off Spin and Temp 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
EXTRARINSE
HOT/COLD
WARM/WARM
WARM/COLD
COLD/COLD
TAB COLD/COLD
RINSE HOLD TIME DRY
AUTO DRY
WASASH
SANITARY
COTTON
PREM. PRESS
WOOL/SILK
RINSE+SPIN
PREM. PRESS
RINSE+SPIN
COTTON
SANITARY
WASH/DRY
WASH
RINSRINSE
DRY
SPIN
DOODOOR LOCK
STAART/PAUSE
TIME LEFT
NO SPIN
400
800
1000
1400
EXTRAWASH
POWER
DRYONLY
SPINOPTION TEMP.TIME DELAY DRY START/PAUSE
Water temperature selector
Press the button to select water temperature.
The water temperature
[WARM/COLD WARM/WARM HOT/COLD
TAB COLD/COLD COLD/COLD] selected in Cotton
or Perm. Press.
[HOT/COLD] is selected for Sanitary only.
By pressing the button while operating the washer,
the present temperature is displayed.
Rinse hold
If you desire to leave fabrics in the machine without spinning after rinse to
prevent them wrinkling, you may select rinse hold by pressing the spin
button.
If you want to drain and spin, when Rinse Hold function is proceed, Press
the Start/Pause button to cancel the Rinse Hold function and select spin
speed or program. Press the Start/Pause button again to start program.
If you want to drain only, select the no spin.
If lamp turns on, that function has been selected.
Option
Extra Wash
•If the laundry is heavily soiled,
“Extra Wash”course is
effective.
•Extra Wash is available in
Sanitary, Cotton and
Perm. press.
Extra Rinse
•This option can be used to
add a rinse for people with
sensitive skin. Selecting the
Extra Rinse button is also
recommended when washing
heavily soiled fabrics which
needs a lot of detergent, or
when the wash load contains
towelling fabrics that have a
greater tendency to retain
detergent.
Child - lock
Child Lock system can be set and canceled by pressing
both [SPIN] and [TIME DELAY ] button simultaneously.
Once Child Lock is set, all button are inoperable.
Child Lock system can be set anytime even during
Power-off and operation.
It is automatically cancelled when an operational error
occur.

11
EXTRARINSE
HOT/COLD
WARM/WARM
WARM/COLD
COLD/COLD
TAB COLD/COLD
RINSE HOLD TIME DRY
AUTO DRY
WASH
SANITARY
COTTON
PREM. PRESS
WOOL/SILK
RINSE+SPIN
PREM. PRESS
RINSE+SPIN
COTTON
SANITARY
WASH/DRY
WASH
RINSE
DRY
SPIN
DOOR LOCK
START/PAUSE
TIME LEFT
NO SPIN
400
800
1000
1400
EXTRAWASH
POWER
DRY ONLY
SPINOPTION TEMP. TIME DELAY DRY START/PAUSE
LED display
It displays the remaining time (Hour : Minute ) to
finish.
In case of abnormal operation, error indications are
displayed.
( )
See troubleshooting guide.
Wash & Wash/Dry program selector
9 programs can be set depending on the type of the
laundry.
By turning the program dial, Cotton Perm.Press
Wool/Silk Rinse+Spin ❉Rinse+Spin
❉Perm. Press ❉Cotton ❉Sanitary Sanitary
[❉:Wash/Dry]
(The opposite order 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.
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.
Dry Selector
•Dry programs can be selected by ressing the
[DRY] button.
•By pressing the button, [AUTO DRY
TIME DRY(30/60/150)] can be selected.
Power button
Press the button to turn power
on and off.
Press the button to cancel the
delay finish.

12
6. WIRING DIAGRAM / PROGRAM CHART
PRGRAM CHART (KGD2-PJT)
*( ) : Wash/Dry
* Water Supply : W S / Intermittent Spin : I S / Distangle : D T
S
CYCLE Washing
Pre
W S
W S W S W S W S
D T
DRY
W S
I S
I S I S I S I S
washing
washing
washing
drain
drain drain
drain
spin
drain drain
rinse rinse rinse rinse
heating
Main 1234
Rinse
Normal Rinse+ Spin
C
O
U
R
S
ETIME
(sec)
TEP
*
*
*
Normal
working
Time
123 7654 8 9 1011121314151617181920212223242526 20
E
N
D
A
U
T
O
O
F
F
20
Cotton
Perm. Press
Sanitary
Wool/Silk
Rinse+Spin
Spin
: Basic Cycle * Basic time is minute in washing chart
* The actual program time can be varied with the load amount.
: Optional Cycle
Pre-Setting Time : Water Supply - 120 sec.
Drain - 60 sec.
120
(min)(min)
60 120240 60 240 120 180 60 240 120 180 60 240 120 180 60 240 120 180 60 480 180 20 20
8
About 1:22(4:31)
About 1:17(4:25)
About 1:37(4:46)
About 56
About 32
About 12
8
8
27
”—

13
7. TROUBLESHOOTING
7-1.BEFORE PERFORMING SERVICE
Be careful of electric shock or disconnecting the parts while trouble shooting.
Voltage of each terminal in 120V~ and DC while applying an electric current.
7-2.QC TEST MODE.
¤¤ Á
Pressing SPIN, and TEMP. button simultaneously.
¤¤ŁŁPower supply ON with pressing upper two button.Then buzzer sound twice.
¤¤ØØPress 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 OPTION and TEMP. 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 [WATER TEMP.] button.
■ Thermistor in dry duct : Press the [DRY] button.
■ Thermistor in condensing duct : Press the [SPIN] and [DRY] button simultaneously.
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 40~52)
2 times Low speed Spin Drum rpm (About 70~90)
3 times High speed Spin Drum rpm (About 110~130)
4 times Inlet valve for pre-wash operation Water level frequency (25~65)
5 times Inlet valve for main-wash operation Water level frequency (25~65)
6 times Inlet valve for dry operation Water level frequency (25~65)
7 times Counterclockwise spin (left) Drum rpm (About 40~52)
8 times
Heater is in operation for 3 sec. Water temperature
9 times Draining pump operation Water level frequency
10 times
Dry operation for 6 minutes Auto off operation after 6 minutes

14
7-5.ERROR DISPLAY.
If you press the START/PAUSE button when an error is 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., the in case of other errors,
if the error is not resolved within 4 min., power will be turned off automatically and the error code will
blink. But in the case of , power will not be turned off.
ERROR SYMPTOM CAUSE
1
2
3
4
5
6
7
•Not reached to the water level (2 level) within 4
minutes after water supplied or not reached to
the preset water level within 25 minutes.
•Not fully drained within 5 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 gathered 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. 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
120V~ outlet?
Power failure? or Breaker opened?
Is the outlet contralled 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
Door does not open
Error displayed on
the program
Drain Trouble
GUIDE FOR SERVICE CALL
NO
YES
NO
YES
Did you press the START/PAUSE button
when the door is open?
NO
YES
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
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 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
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, 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)>
(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 120V?
Is the led (1) on?
Is connector (2) disconnected or
disassembled?
Is wire of the PWB ASSEMBLY disconnected?
Replace PWB ASSEMBLY
NO POWER
CAUTION

20
NO
YES
NO
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
NO
YES
Wiring diagram
MAX
Is water supply shut-off?
Is the tap opened?
When you press both RINSE button and SPIN
button simultaneously, is the water level frequency
below 240?
Is the inlet valve filter clogged with impurity?
Is resistance between each terminal of INLET
VALVE ASSEMBLY is 2~8
kΩ ?
Check the voltage of the inlet valve connector
120V~.
(Refer to 7-2 QC TEST MODE)
Is water supplied?
Are replaceptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?
Is detergent put in the correct compartment of
the drawer?
Is the detergent caked or hardened?
Open the tap.
Check the AIR CHAMBER
and the tube clogged
with impurity.
Clean the filter.
Replace the INLET VALVE
ASSEMBLY.
Replace the MAIN PWB
ASSEMBLY
Refer to
NO WATER SUPPLY
Check the wiring on the
dispenser.
Put the detergent in the
correct position
LIQUID BLEACH
MAIN WASH
: Detergent
Clean the drawer.
NO WATER SUPPLY
DETERGENT DOES NOT FLOW IN
MAIN
WASH
SOFTENER
LIQUID
BLEACH