LG WM3360HCA Service Manual
Website : http://biz.lgservice.com
WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL: WM3360H*CA
OCT. 2009 PRINTED IN KOREA P/No.: MFL30599175
CONTENTS
1. Specifications .................................................................................................................................. 3
2. Features and Technical Explanation ............................................................................................ 4-6
3. Parts Identification ........................................................................................................................... 7
4. Installation and Test ................................................................................................................... 8-10
5. Operation .................................................................................................................................. 11-17
5-1. Control Panel Features ..................................................................................................... 12-13
5-2. Cycle Guide ........................................................................................................................... 14
5-3. Special Functions ................................................................................................................... 15
5-4. Explanation of Each Process ............................................................................................ 16-17
6. Wiring Diagram / Program Chart .............................................................................................. 18-19
7. Test Mode ...................................................................................................................................... 20
7-1. Safety Caution ....................................................................................................................... 20
7-2. Load Test Mode ..................................................................................................................... 20
7-3. How To Read the Display in Load Test Mode ........................................................................ 20
8. Troubleshooting ....................................................................................................................... 21-35
8-1. Safety Caution ....................................................................................................................... 21
8-2. Error Mode Summary ....................................................................................................... 21-22
8-3. Troubleshooting Summary ..................................................................................................... 23
8-4. Troubleshooting With Error ............................................................................................... 24-30
8-5. Troubleshooting Else ........................................................................................................ 31-35
9. Component Testing Information ............................................................................................... 36-48
9-1. Filter Assembly (Line Filter) ................................................................................................... 36
9-2. Door Look Switch Assembly ............................................................................................. 37-38
9-3. Stator Assembly ................................................................................................................ 39-41
9-4. Pump Motor Assembly ........................................................................................................... 42
9-5. Inlet Valve Assembly .............................................................................................................. 43
9-6. Heater Assembly .................................................................................................................... 44
9-7. Thermistor Assembly ........................................................................................................ 45-46
9-8. Steam Generator Assembly .............................................................................................. 47-48
10. Disassembly Instructions ......................................................................................................... 49-59
11. Exploded View ......................................................................................................................... 60-62
11-1. Cabinet and Control Panel Assembly ................................................................................... 60
11-2. Drum and Tub Assembly ...................................................................................................... 61
11-3. Dispenser Assembly ............................................................................................................. 62
2
1. SPECIFICATIONS
ITEM WM3360H*CA
COLOR
POWER SUPPLY
PRODUCT WEIGHT
ELECTRIC POWER
CONSUMPTION
REVOLUTION
SPEED
CYCLES
WASH/RINSE TEMPERATURES
SPIN SPEEDS
OPTIONS
WATER CIRCULATION
OPERATIONAL WATER PRESSURE
CONTROL TYPE
WASH CAPACITY [cu.ft. ]
DIMENSIONS
DELAY WASH
DOOR SWITCH TYPE
WATER LEVEL
LAUNDRY LOAD SENSING
ERROR DIAGNOSIS
AUTO POWER OFF
CHILD LOCK
STEAM
WASHING
DRAIN MOTOR
WASH HEATER
WASH
SPIN
W : BLUE White, V : STAINLESS SIVER, R : CANDY APPLE RED
AC 120 V, 60 Hz
Product weight : 192lb (87kg)
280 W
80 W
1000 W
46 rpm
0~1,200 rpm
Cycle : 12
5
5
STEAM, COLD WASH, DELAY WASH, PREWASH,
FRESH CARE, EXTRA RINSE, STAIN CARE
Incorporated
14.5-116 psi (100-800 kPa)
Electronic
3.89 (4.5 IEC)
27”(W) X 293/4”(D) X 3811/16”(H), 51”(D, door open)
up to 19 hours
PTC + Solenoid
10 steps (by sensor)
Incorporated
Incorporated
Incorporated
Incorporated
Incorporated
3
2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES
Ultra Capacity
The larger drum enables not just higher head drop and stronger centrifugal force,
but also less tangling and wrinkling of the laundry. Heavier loads, such as king size
comforters, blankets, and curtains, can be washed.
Direct Drive System
The advanced brushless DC motor directly drives the drum without belt and pulley.
Tilted Drum and Extra Large Door Opening
Tilted drum and extra large opening make it possible to load and unload clothing
more easily.
Steam Washing and SteamFresh
Steam washing features upgraded washing performance with low energy and water
consumption. SteamFresh
TM
TM
cycle removes wrinkles from dry clothes.
Automatic Wash Load Detection
Automatically detects the load and optimizes the washing time.
Built-in Heater
Internal heater helps to maintain water temperature at its optimum level for selected
cycles.
Child Lock
The child lock prevents children from pressing any button to change the settings
during operation.
4
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.
water
temperature
washing time
selected
washing
temperature
SENSING
load
size
PROCESSING
NEURO-
FUZZY
rinsing time
spin rhythm, time
DETERMINATION
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 best
washing
performance
EFFECT
The door can be opened by pulling the door handle whenever washer is not in operation.
When the cycle is completed, the DOOR LOCKED light will turn off.
If a power failure has occurred while in operation, the door will unlock after 5 minutes.
Clicking sounds can be heard when the door is locked/unlocked.
5
2-5. THE DOOR CAN NOT BE OPENED
While program is operating.
When a power failed and power plug is taken out in operation.
While Door Lock lights turn on.
White the motor is in the process of inertial rotating, through the operation is paused.
2-6. DOOR LOCKED LAMP LIGHTS
When the frequency of water level is lower than 22.9 kHz.
(It can be canceled when the frequency is more than 23.8 kHz.)
When the temperature inside the tub is higher than 45°C and water level is not 25.5 kHz.
(It can be canceled when the water level is 25.5 kHz or the temperature inside the tub is lower than 40°C.)
2-7. CHILD LOCK
Use this option to prevent unwanted use of the washer. Press and hold STAIN CARE button for 3
seconds to lock/unlock control.
When child lock is set, CHILD LOCK lights and all buttons are disabled except the POWER
button. You can lock the controls of the washer while washing.
CHILD LOCK lasts after the end of cycle. If you want to deactivate this function,
Press and hold the STAIN CARE button for 3 seconds.
2-8. WATER CIRCULATION
When washing and rinsing function of shower at the upper part of Gasket.
When washing, it continuously operates for 3 minutes and intermittently.
When rinsing, it continuously operates after completion of water supply.
2-9. STEAM
For tough stained clothes, sick room linens, or baby clothes.
Steam Wash is available with Sanitary, Bulk/Large, Perm. Press, Cotton/Normal, and Baby Wear cycles.
This option features upgraded washing performance with low energy and water consumption.
Do not load delicates such as wool, silk, and easily discolored clothes.
6
3. PARTS IDENTIFICATION
Drain Hose
Dispenser
Door
Shipping Blots
Power Plug
• If the supply cord is
damaged, it must be
replaced by the
manufacturer or its
authorized service
technician in order to
avoid a hazard.
Control Panel
Door Cleaning NozzleDoor Cleaning Nozzle
Water Circulation &
Steam Nozzle
Drum Light
Drum
Door Seal
Lower Cover Cap
Hoses (1 Hot and 1 Cold)
ACCESSORIES
Back of Washer
Cold Water Inlet
Hot Water Inlet
Drain Pump FilterDrain Plug
Air Vent for Safety
7
4. INSTALLATION & TEST
1
Before servicing, ask the customer what the trouble is.
2
When installing or repairing the washer, put on long gloves and safety glasses.
3
Check the setup (power supply is 120 V
Check with the troubleshooting guide.
4
Plan your service method by referring to the disassembly instructions.
5
Service the unit.
6
After servicing, operate the appliance to see whether it functions correctly.
7
STANDARD INSTALLATION
The appliance should be installed as follows:
AC
, remove the transit bolts, level the washer, etc.)
REMOVE THE SHIPPING
BOLTS
Remove the 4 shipping bolts
with the supplied wrench.
Remove the lower boits fist.
It is easier that way.
Keep the shipping bolts and
spanner for future use.
Insert the 4 caps (provided)
into the hole.
INSTALL THE APPLIANCE
ON A FLAT AND FIRM SURFACE
ADJUST THE
LEVELING
Turn the leveling feet to
adjust the appliance.
Keeping
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.
Install the inlet hose to correct temperature
water tap.
Otherwise, it cause drips on the drawer panel
handle and drawer panel.
CONNECT THE DRAIN HOSE
Hot
Cold
• Make sure that the hose is not twisted.
• Avoid submerging the end of the hose.
The end of the drain hose should be placed less than 96” from the floor.
CONNECT POWER PLUG
• Connect the power plug to the wall outlet.
• Avoid connecting several electric devices,
as doing so may cause a fire.
9
7
TEST OPERATION
Preparation for
1
washing.
• Connect the power plug to the
outlet.
• Connect the inlet hoses.
Check the water heating
6
function.
Press the POWER button.
2
Check the automatic reverse
5
rotation.
Press the START/PAUSE
3
button.
• Listen for a click to determine if the
door has locked.
Check the water supply.
4
• Press the WASH/RINSE button
and the present temperature will
be displayed.
Check the drain and spin
7
functions.
•Power off and the power on.
• Press the SPIN SPEED button.
• Press the START/PAUSE button.
• Check the spin and drain functions.
• Check if the drum rotates
clockwise and counterclockwise.
Press the START/PAUSE
8
button.
• Listen for a click to determine if the
door is unlocking.
10
• Check if water is supplied through
the detergent dispenser.
Water removal
9
• If SERVICE is needed during
check, remove the remaining
water by pulling out the hose cap.
5. OPERATION
5-1. CONTROL PANEL FEATURES
WM3360H*CA
11
Power Button
Status Indicator
• Use this button to turn the
power On/Off.
• It shows elapsed time of the cycle the washer is
operating.
Cycle Selector Knob
• Rotate the Cycle selector knob to select the cycle
designed for different types of fabric and soil
levels.
Start/Pause
• Use this button to
Start/Stop the washer.
12
Option Button
• STEAM: Use the STEAM button to add steam to the cycle for the extra cleaning.
• PRE-WASH:
• DELAY WASH:
• COLDWASHTM: Use this function to wash without hot water and heating.
• EXTRA RINSE : This option will add an extra rinse cycle to the selected cycle.
• STAIN CARE : Select this option for heavily stained clothes, such as play clothes or work clothes.
• CHILD LOCK : Use this option to prevent unwanted use of the washer or to keep cycle settings from being
• FRESH CARE : Use this function when you are not able to unload your clothes, son after the wash cycle ends.
Use the PREWASH button to select to wash temporary before to start the course which you chosen.
Once you have selected the cycle and other settings, press this button to delay the start of the wash cycle.
changed while the washer is operating.
Wash/Rinse, Spin speed, Soil Level, Signal Button
• Select a water temperature based on the type of load you are washing.
• To change the spin speed, press the Spin Speed button repeatedly to cycle through available options.
• To change the soil level, press the Soil Level button repeatedly until the desired setting is on.
• Press repeatedly to adjust the volume of the Beeper.
13
5-2. Cycle Guide
The cycle guide below shows the options and recommended fabric types for each cycle.
=Available option
NOTE: To protect your garments, not every wash/rinse temperature, spin speed, soil level, or option is
available with every cycle.
14
5-3. SPECIAL FUNCTIONS
The option buttons also activate special functions, including CHILD LOCK, DRUM LIGHT, FRESH CARE, and
LANGUAGE. Press and hold the option button marked with the special function for 3 seconds to activate.
CHILD LOCK
Use this option to prevent unwanted use of the washer or to keep cycle settings from
being changed while the washer is operating. Press and hold the PREWASH button for
3 seconds to activate or deactivate the child lock function.
The child lock indicator will be shown in the display, and all buttons are disabled except
the ON/OFF button.
NOTE: CHILD LOCK lasts after the end of cycle. If you want to deactivate this function,
Press and hold the STAIN CARE button for 3 seconds.
TUB CLEAN
A buildup of detergent residue can occur in the wash tub over time and can lead to a
mildewy or musty smell. The TUB CLEAN cycle is specially designed to remove this
buildup. After the cycle has ended, safely and conveniently secure the door slightly ajar
with a magnetic door plunger to keep the door open. This will promote air circulation and
allow the interior of the machine to dry.
NOTE: Do NOT use this cycle with clothes, and do NOT add detergent or fabric
softener.
NOTE: If you use the TUB CLEAN cycle on a monthly basis, the wash drum will be kept
clean.
15
5-4. Explanation of each process
No. Process Explanation
Stay • Electrical power is supplied.
1.
•Washer is ready to work and the micom is in the active mode.
Water
2.
supply
Soaking
3.
and washing
laundry
4.
Heating and
washing
5.
Washing
and heating
6.
/ washing
7. Washing • Fuzzy logic decides washing time according to the laundry load, water
Drainage • A pump motor drains the water from the drum.
8.
• After loading laundry and selecting a course and a cycle, water is
supplied and drum rotates.
• When a user selects Pre-wash course, water is supplied through pre
wash valve.
•To get laundry wet, drum rotates clockwise and counterclockwise.
• If water amount is insufficient at this time, the Inlet valve will supply
water again.
• The heater heats the water in drum to the selected water temperature
and drum rotates for washing.
• When the water temperature reaches to the selected temperature,
the heating stops and only the drum rotates.
• If water temperature becomes lower than selected because of
re-supplied water, the heating starts again.
temperature, and other factors.
•After sensing drained water amount by water level frequency, spin starts.
• When a heating course is selected, stay cooling process is performed to
decrease the water temperature gradually to prevent laundry from being
damaged and for safety reasons.
9. Untangling
(Sensing
eccentricity)
• It balances laundry load and senses the eccentricity of the load, to only
allow spinning without vibration.
• If the eccentricity is worse than the allowed level, it repeats the
disentangling process. When the repeated time is more than allowed
level, it displays UE.
• If the eccentricity is good, the intermittent spin starts.
• During this process, the drain pump works for drainage intermittently.
16
No. Process Explanation
A.
Intermittent
spin
•To reach the correct set speed, the motor rotates clockwise and
counterclockwise directions after spin process starts.
• If the water level frequency is lower than 23.0 kHz,
a washer senses suds and starts suds removal process.
B. Rinse
spin
• In this process, the remaining water during washing process is
extracted and the selected speed is kept.
• Removing suds process is in active mode at this cycle.
C. Remaining
spin
• After spin finishes, the drum rotates by remaining spin power until it
stops. Motor power is off.
• This process is overlapped with next process.
D. Rinse water
•Water supply for rinse process.
supply
E.
Rinse • Rinsing process.
F. Last
drainage
• After spin finishes and power is not supplied to motor, the drum
rotates by remaining spin power.
• If rinse hold is selected, the drainage is not proceeded after rinse
finishes.
Disentangling • The same as item 9.
G.
Intermittent spin
H.
Main spin1 • The same as item B.
I.
• The same as item A.
J. Main spin2 • At the end of a main spin, the spin speed will reach the selected rpm.
K. Remaining spin • The same with item C.
L. Disentangling • After spin finishes, disentangling starts to remove unbalanced
laundry.
M. End • After ‘end’ signal is displayed, it stays for 8 seconds and power is
automatically turned off. (Auto type door switch)
• After door switch is off, end signal is displayed in the case of
manual type and it takes around 2 minute to turn off door switch.
17
6. WIRING DIAGRAM / PROGRAM CHART
18
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