LG WM2075 Service Manual

Website: http: //www.LGEservice.com

E-mail: http: //www.LGEservice.com/techsup.html

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

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 –

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.

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.

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.

3. PARTS IDENTIFICATION

울

란

제

리

란제리

Water Circulation Nozzle

Safety Cover (PLC Moderm)

ACCESSORIES

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.

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.

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.

5. OPERATION

WM2277H*/WM2177H*

WM2077CW

WM2677H*M

• 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 .

• 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.

+ 30 hidden pages