LG WM1333H User manual

WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL: WM1333H*
CAUTION
Website: http://www.LGEservice.com [For U.S.A]
www.lg.ca [For CANADA]
E-mail: http://www.LGEservice.com/techsup.html
!

JUN. 2006 PRINTED IN KOREA P/No.: MFL31245502

CONTENTS
1. SPECIFICATIONS .........................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION ................................................................................ 4
3. PARTS IDENTIFICATION ............................................................................................................ 6
4. INSTALLATION & TEST ............................................................................................................... 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 CHECK THE WATER LEVEL FREQUENCY......................................................13
7-4. ERROR DISPLAY...............................................................................................................14
8. ERROR DIAGNOSIS AND CHECKLIST.....................................................................................15
8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION ........................................15
8-2. FAULT DIAGNOSIS AND TROUBLE SHOOTING .............................................................18
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................25
10. EXPLODED VIEW.....................................................................................................................32
10-1. CABINET & CABINET COVER ASSEMBLY.....................................................................32
10-2. CONTROL PANEL & DISPENSER ASSEMBLY...............................................................33
10-3. DRUM & TUB ASSEMBLY................................................................................................34
2

3
1. SPECIFICATION
WM1333H*
WASHING
SPIN
DRAIN MOTOR
WASH HEATER
WASH
SPIN 0-1300 rpm
ELECTRIC
POWER
CONSUMPTION
ITEM
POWER SUPPLY
PRODUCT W EIGHT
REVOLUTION
SPEED
OPERATIONAL WATER PRESSURE
CONTROL TYPE
WASH CAPACITY
DIMENSIONS
CYCLES
WASH/RINSE TEMPERATURES
SPIN SPEEDS
OPTIONS
DELAY WASH
DOOR S W ITCH TYP E
WATER LEVEL
ERROR DIAGNOSIS
POWER AUTO OFF
CHILD LOCK
AUTO RESTART
AC 1 0 V, 60 Hz
1 8 lbs. (58 kg)
100 W
400 W
80 W
1000 W
48 rpm
4.5-145 psi (30-1000 kPa)
Electronic
.3 cu. ft
3 " (W) X 1 " " (D) X 33 (H)
9
7
Stain Cycle, Quick Cycle, Soak, Extra Rinse, Warm Rinse, Delay Wash
up to 19 hours
Bi-Metal
Incorporated
Incorporated
9 steps (by sensor)
Incorporated
Incorporated
53 1 53
4

2. FEATURES & TECHNICAL EXPLANATION
4
2-1.FEATURES
Direct Drive System
The advanced Brushless DC motor directly drives the drum without
belt and pulley.
Built-in Heater
Internal heater automatically heats the water to the best
temperature
on selected cycles.
Child Lock
The Child lock prevents children from pressing any button to
change the settings during operation.
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.
Low noise speed control system
By sensing the amount of load and balance,it evenly distributes
load to minimize the spinning noise level.

5
2-2. NEURO FUZZY WASHING TIME OPTIMIZATION
To get the best washing performance, optimal time is determined by the water temperature,
the selected washing temperature, and the size of the load.
2-3. WATER LEVEL CONTROL
This model incorporates a pressure sensor which can sense the water level in the tub.
The water supply is stopped when the water level reaches the preset level, the washing
program then proceeds.
Spinning does not proceed until the water in the tub drains to a certain level.
2-4. DOOR CONTROL
The door can be unlocked by pressing the Start/Pause button to stop the washer.
It will unlock after 1~2 minutes.
For Safety, the door cannot be unlocked if the water level or the water temperature is too high.
NEURO-
FUZZY
load
size
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
for removing shipping bolts
And leveling the washer

4. INSTALLATION & TEST
7
Before servicing, ask the customer what the trouble is.
Check the setup (power supply is 120 V AC, remove the transit bolts....).
Check with the troubleshooting guide.
Plan your service method by referring to the disassembly instructions.
Service the unit.
After servicing, operate the appliance to see whether it functions correctly.
STANDARD INSTALLATION
The appliance should be installed as follows:
REMOVE THE SHIPPING INSTALL THE APPLIANCE ADJUST THE
BOLTS
ON A FLAT AND FIRM SURFACE LEVELING
Remove the 4 shipping bolts Turn the leveling feet to adjust
with the supplied wrench. the appliance.
Do lower bolts first remove
easily.
Keep the shipping bolts and
wrench for future use.
Insert the 4 caps
(provided) into the hole.
Turn clockwise to raise;
counterclockwise to lower.

8
HOW TO CONNECT THE INLET HOSE
Verify that the rubber washer is inside of the
valve connector.
Tighten the inlet hose securely to prevent leaks.
CONNECT THE DRAIN HOSE
CONNECT POWER PLUG
The end of the drain hose should be placed less than 96 ” from the floor.
Connect the power plug to the wall outlet. Washer should be connected to dedicated
circuit.
Make sure that the hose is not twisted. Avoid submerging the end of the hose.

9
MAX
max
Connect the power plug to
the outlet.
Connect the inlet hose.
Preparation Press the POWER button. Press the Start/Pause
for washing. button.
Press the Soak 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.
Check if the door can be
opened after 3 minutes.
•Power off and power on.
•Press the Spin Speed button.
•Press the Start/Pause button.
•Check the spin and drain
functions.
If SVC is needed, remove the
remaining water by pulling out
the hose and removing the
cap.
Check the water heating Check automatic reverse Check the water supply.
function. rotation.
Check drain and spin Power off and open the Water removal
functions. door
TEST OPERATION

10
5. OPERATION
•Rotate the Cycle selector knob to
select the cycle designed for
different types of fabric and soil
levels.
•Use this button to Start/
Stop the washer. •Add time to the wash and
rinse cycle for better stain
removal.
Automatically provides a
rinse.
•The Quick Cycle offers a
quick cycle time.
•Allows the start of any cycle to
be delayed for 1~19 hours.
CYCLE SELECTOR knob Delay Wash
START/PAUSE button Stain Cycle Quick Cycle

11
•Use this button to turn the
power
On/Off.
•To change the spin speed,
press the Spin button
repeatedly to cycle through
available options.
•Warm Rinse on the final rinse.
•Use this option to wash
normal clothes or thick and
heavy clothes which are
excessively dirty.
•This option provides an
additional rinse cycle.
•Use this option to ensure
the removal of detergent
or bleach residue from
garments.
POWER buttonSoak Extra Rinse
Warm Rinse
Spin

12
6. WIRING DIAGRAM/PROGRAM CHART
MAIN PWB
RD
VL BL
/
WH
BL
/
WH
BL
/
WH
SBL
GN/YL
WASHING HEATER
DOOR LOCK S/W
DRAIN PUMP
UVW
RD BNYL BL
BL
GN
/
YL
GN
/
YL
BLBN
BLBN
POWER
CORD
HS1 HS2 HS3
GND
MOTOR
PRESSURE
SENSOR THERMISTOR
n
"n" PIN CONNECTOR
TERMINAL+HOUSING (#250)
EARTH RING TERMINAL
Base/Line
MEZ31823201
TERMINAL (#250)
(S)(S) (G)
OR RD BLYL BL RDGYWH BK
2631
263145 45
GY
/
WH YL
/
RD BN
/
YL
BK
BK BK BK
PTC
BK
BL
BL
/
RD WH
/
BK
YL
1234
1234
BL
1234
1234
643251
643
213
213
123
11 123
221 1251
14352
14352
231
231
321
32 12 121
DISPLAY
PWB
RD NA BK 21
12
YL
WH
RED
INLET VALVE
BL NA
H
O
T
WH
WH
NA
WH NA
21
21
B
L
E
A
C
H
21
21
M
A
I
N
21
21
123
123
RD
NOISE
FILTER
123
123
WH
**
Cool-down **Approx.
(Minutes)
* Wash time is in minutes.
** The total working time will vary with the load size,
water temperature and ambient temperature.
Soak
104
71
23
23
17
24
8120 120
57
56
52
31
33
33
Speed Wash
13
30
44
18

13
7. TROUBLE SHOOTING
7-1. BEFORE PERFORMING SERVICE
Be careful of electric shock when disconnecting parts while troubleshooting.
The voltage of each terminal is 110/120 V AC and DC when the unit is plugged in.
7-2. QC TEST MODE.
The washer must be empty and the controls must be in the off state.
1. Press the Stain Cycle and Soak buttons simultaneously.
2. Press the Power button, while the above condition. Then buzzer will sound twice.
3. Press the Start/Pause button repeatedly to cycle through the test modes.
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
Press the Quick Cycle and Spin Speed button simultaneously.
So, for example a display indicating 241: a Water level frequency of 241 x.1 kHz
= 24.1 kHz
The digits indicate the water level frequency ( x.1 kHz ).
Check Point Display Status
None Turns on all lamps and locks the door.
1 time Tumble counterclockwise rpm (40~50)
2 times Low speed Spin. rpm
3 times High speed Spin. rpm
4 times Inlet valve for bleach turns on. Water level frequency (25~65)
5 times Inlet valve for main water turns on. Water level frequency (25~65)
6 times Inlet valve for hot wash turns on. Water level frequency (25~65)
7 times Tumble clockwise rpm (40~50)
8 times
Heater turns on for 3 sec. Water temperature
9 times Drain pump turns on. Water level frequency (25~65)
10 times
Power off. Turn off all lamps.
Number of times the
Start/Pause button is pressed

14
7-4. ERROR DISPLAY
If you press the Start/Pause button when an error is displayed, any error except will disappear
and the machine will go into the pause status.
In case of if the error is not resolved within 20 sec., or in the 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. In the case of , power will not be turned off.
ERROR SYMPTOM CAUSE
WATER INLET
ERROR
•Correct water level (246) is not reached within 8 minutes
after water is supplied or it does not reach the preset water
level within 25 minutes.
•The load is too small.
•The appliance is tilted.
•Laundry is gathered to one side.
•Non distributable items are put into the drum.
1
2
IMBALANCE
ERROR
•Not fully drained within 10 minutes.
3
DRAIN
ERROR
•Water is overflowing (water level frequency is over 213).
※If is displayed, the drain pump will operate to
drain the water automatically.
4
OVER FLOW
ERROR
•The SENSOR SWITCH ASSEMBLY is out of order.
5
PRESSURE
SENSOR
ERROR
•Door not all the way closed.
•Loose electrical connections at Door switch and
PWB Assembly.
•The DOOR SWITCH ASSEMBLY is out of order.
6
DOOR OPEN
ERROR
•The THERMISTOR is out order.
•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
7
8
HEATING
ERROR
MOTOR
ERROR

15
8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION
8. ERROR DIAGNOSIS AND CHECKLIST
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?
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
• Door does not open
• Error displayed on
the program
• DRAIN TROUBLE
GUIDE FOR SERVICE CALL
NO
YES
NO
YES
Started with door opened?
NO
YES
Is the drain pump filter clogged with foreign
material such as pin, coin and 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.
.

17
SYMPTOM GUIDE FOR SERVICE CALL
Suds overflow from the
appliance.
(In this condition, wash and
spin do not operate
normally)
YES
YES
YES
YES
YES
MAX
max
Is low-sudsing detergent for the drum
washing machine used?
Is the proper amount of detergent used
as recommended?
Reduce the amount of detergent.
Is softener put in the correct compartment of
the drawer?
Is the drawer closed during wash?
Is the cap clogged?
Explain proper use of liquid laundry products.
< Clean the compartment for softener >
Visit to check
LOW-SUDSING
This appliance has the automatic suds sensing function which
operates during high-sudsing for good rinse and preventing
overflow.
When high suds are sensed, suds removing function such as
drain, water input and pause will operate without rotating the
drum.
• Liquid laundry products
do not flow in.

18
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING
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 or reset
the circuit breaker.
Replace MAIN PWB
ASSEMBLY
Reconnect.
Reconnect.
Is the supplied voltage 120 V AC?
Is the led(1) on?
Are the connectors (2) on the PWB loose?
Is wire of the PWB ASSEMBLY disconnected?
Replace PWB ASSEMBLY
NO POWER
CAUTION
!

19
NO
YES
NO
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
NO
YES
MAX
max M
A
X
Detergent
for wash Fabric softener Liquid Bleach
Is water supply shut-off?
Is the tap opened?
When you press both Quick Cycle button and
Spin Speed button simultaneously, is the water
level frequency below 240?
Is the inlet valve filter clogged?
Is resistance between each terminal of INLET
VALVE ASSEMBLY is 0.8~1.2
kΩ ?
Verify the voltage of the inlet valve connector is
120 V AC.
(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 dispenser?
Is the detergent caked or hardened?
Open the tap.
Check the AIR CHAMBER
and the tube (clogged).
Clean the filter.
Replace the INLET VALVE
ASSEMBLY.
Check electrical connection.
Replace the MAIN PWB
ASSEMBLY.
Refer to
NO WATER SUPPLY
Check the wiring.
Put the detergent in the
correct position
MAIN WASH
: Detergent
Clean the dispenser.
NO WATER SUPPLY
DETERGENT DOES NOT FLOW IN