LG WM2075 Service Manual
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WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL: WM2277H*/WM2077CW/
WM2177H*/WM2677H*M
100
APR. 2004 PRINTED IN KOREA
P/No.:3828ER3018Y
101
CONTENTS
1. SPECIFICATIONS .........................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION ................................................................................ 4
3. PARTS IDENTIFICATION ............................................................................................................ 7
4. INSTALLATION & TEST ............................................................................................................... 8
5. OPERATION ................................................................................................................................11
6. WIRING DIAGRAM/PROGRAM CHART.....................................................................................14
7. TROUBLESHOOTING.................................................................................................................17
7-1. BEFORE PERFORMING SERVICE ...................................................................................17
7-2. QC TEST MODE.................................................................................................................17
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY ......................................................17
7-4. ERROR DISPLAY ...............................................................................................................18
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................20
8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION ........................................20
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ..............................................................23
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................32
10. EXPLODED VIEW .....................................................................................................................41
10-1. CABINET & CONTROL PANEL ASSEMBLY ....................................................................41
10-2. DRUM & TUB ASSEMBLY................................................................................................42
10-3. DISPENSER ASSEMBLY .................................................................................................43
2
1. SPECIFICATIONS
ITEM WM2677H*M WM2277H* WM2177H* WM2077CW
COLOR W: BLUE WHITE, B: BLACK PEARL, S: TITANIUM
POWER SUPPLY AC 120 V, 60 Hz
PRODUCT WEIGHT 190 lbs. (86 kg)
ELECTRIC POWER
CONSUMTION
REVOLUTION SPEED
CYCLES 9 7
WASH/RINSE TEMPERATURES 5
SPIN SPEEDS 5
OPTIONS Prewash, Stain Cycle, Quick Cycle, Extra Rinse, Rinse+Spin, Delay Wash
CUSTOM PROGRAM Incorporated
WATER CIRCULATION Incorporated –
OPERATIONAL WATER PRESSURE 4.5-145 psi (30-1000 kPa)
CONTROL TYPE Electronic
WASH CAPACITY [cu. ft.] 3.32 (3.83 IEC) 3.22 (3.72 IEC)
DIMENSIONS 27” (W) X 293/4” (D) X 3811/16” (H), 5013/16” (D, door open)
WASHING 280 W
DRAIN MOTOR 80 W
WASH HEATER 1000 W –
WASH 42 rpm
SPIN
0-1320 rpm 0-1100 rpm 0-1000 rpm
DELAY WASH up to 19 hours up to 12 hours up to 9 hours
DOOR SWITCH TYPE PTC + Solenoid
WATER LEVEL 10 steps (by sensor)
LAUNDRY LOAD SENSING Incorporated
ERROR DIAGNOSIS Incorporated
AUTO POWER OFF Incorporated
CHILD LOCK Incorporated
RLM ENABLE Incorporated –
3
2. FEATURES & TECHNICAL EXPLANATION
추가선택, 예약,
2-1. FEATURES
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 door opening make it possible
to load and unload easily.
Water Circulation
Spray detergent solution and water onto the load repeatedly.
Clothes are soaked more quickly and thoroughly during the wash cycle.
Detergent suds are eliminated more easily by the water shower
during rinse cycle. The water circulation system uses both
water and detergent more efficiently.
RollerJets
Washing ball enhances wash performance and reduces
damage to clothing.
washing performance while maintaining fabric care.
The jets spray and help tumble clothes to enhance
Automatic Wash Load Detection
Automatically detects the load and optimizes the washing time.
Built-in Heater
Internal heater automatically heats the water to the optimum temperature
on selected cycles.
Child Lock
The Child lock feature prevents children from pressing any buttons
to change the settings during operation.
Using the RLM (Remote Laundry Monitor)
The RLM monitors status of your washer and/or dryer. You can plug the
display unit into any power outlet in your home.
The RLM Display Unit can be purchased separately for this washer.
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.
the best
washing
performance
EFFECT
2-4. DOOR CONTROL
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
울
란제리
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 intertial 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 PRE WASH 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 washer while it is operating.
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 at first rinse.
6
3. PARTS IDENTIFICATION
울
란
제
리
란제리
Water Circulation Nozzle
A
Safety Cover (PLC Moderm)
ACCESSORIES
7
4. INSTALLATION & TEST
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
Remove the 4 shipping bolts Turn the leveling feet to adjust
with the supplied wrench. the appliance.
Do first lower side to remove easily.
Keep the shipping bolts and
spanner for future use.
Insert the 4 caps
(provided) into the hole.
ON A FLAT AND FIRM SURFACE
LEVELING
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
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
SOFTENER
MAX
TEST OPERATION
Preparation for Press the POWER button. Press
the
Start/Pause
washing. button.
Connect the power plug to
the outlet.
Connect the inlet hoses.
Listen for a click to determine if
the door has locked.
Check the water heating Check the automatic Check the water supply.
function. reverse rotation.
Press the WASH/RINSE button Check if the drum rotates Check if water is supplied
and the present temperature will
be displayed.
Check the drain and spin
functions.
Power off and the power on.
Press the SPIN SPEED button.
Press the START/PAUSE button.
Check the spin and drain
functions.
clockwise and counterclockwise.
Press the
START/PAUSE button.
Listen for a click to determine
if the door is unlocking.
through the detergent dispenser.
Water removal
If SVC is needed during check,
remove the remaining water by
pulling out the hose cap.
10
5. OPERATION
WM2277H*/WM2177H*
WM2077CW
WM2677H*M
11
• Use this button to turn the power
On/Off.
• Rotate the Cycle selector
knob to select the cycle
designed for different
types of fabric and soil
levels.
• This display shows:
a) the estimated time remaining in the
cycle when operating.
b) an error code when an error has been
detected.
• Use this option to prevent
Press and hold PRE WAS
lock/unlock control.
• When Child lock is set, CH
buttons are disabled exce
can lock the washer while
• Use this button to Start/
Stop the washer.
•
Allows you to store a customized wash cycle for future use.
• To create a Custom Program:
1) Select a cycle.
2) Select the other desired Wash/Rinse Temp., Spin Speed, Soil Level.
3) Select the desired Options.
4) Press and hold the Custom Program button for 3 seconds (2 beep sounds).
The Custom Program is now stored for future use.
• To reuse the program, select Custom Program and press Start/Pause .
12
• Se
lo
• To
bu
op
• To
bu
• Pr
CHILD LOCK lights and all
• Allows the start of any cycle
to be delayed for 1~12
hours.
• These lights show which portion of the
cycle the washer is operating.
• Lights whenever the door
of the washer is locked.
• The door can be unlocked
by pressing the
Start/Pause button to
stop the washer.
load you are washing.
button repeatedly to cycle through available
options.
button repeatedly until the desired setting is on.
• Prewash: Use this option for loads that need pretreatment. It
adds 16 minutes prewash and drain.
• Rinse+Spin: Use this option to rinse and then spin.
• Extra Rinse: This option provides an additional rinse cycle.
• Stain Cycle: Adds time to the wash and rinse cycles for better
stain removal. Automatically provides a rinse.
• Quick Cycle: The Quick cycle offers a quick cycle time.
13
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