LG WM2677H, WM2477H, WM2377C, WM2277H, WM2177H User Manual

100

WASHING MACHINE

SERVICE MANUAL

READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.

MODEL: WM2277H*/WM2077CW

WM2177H*/WM2677H*M
WM2477H*/WM2377C*
WD-11270BD

CAUTION

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

!

101

JUL. 2006 PRINTED IN KOREA

P/No.: MFL30599103

2

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

3

1. SPECIFICATIONS

ITEM

COLOR W: BLUE WHITE, B: BLACK PEARL, S: TITANIUM

POWER SUPPLY AC 120 V, 60 Hz

PRODUCT WEIGHT 190 lbs. (86 kg)

WASHING 280 W

DRAIN MOTOR 80 W

WASH HEATER 1000 W –

WASH 42 rpm

SPIN

0-1320 rpm 0-1150 rpm 0-1000 rpm

CYCLES 9 7

WASH/RINSE TEMPERATURES 5

SPIN SPEEDS 5

OPTIONS Prewash, Stain Cycle, Extra Rinse, Rinse+Spin, Delay Wash, Water Plus

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)

DIMENSIONS 27” (W) X 293/4” (D) X 3811/16” (H), 5013/16” (D, door open)

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 –

ELECTRIC POWER

CONSUMTION

REVOLUTION SPEED

WM2677H*M

WM2277H*

WD-11270BD

WM2477H*

WM2177H*

WM2077CW

WM2377C*

4

2. FEATURES & TECHNICAL EXPLANATION

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.

The jets spray and help tumble clothes to enhance

washing performance while maintaining fabric care.

■

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.

추가선택, 예약,

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 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.

NEURO-

FUZZY

load
size

selected
washing

temperature

water

temperature

washing time

rinsing time

spin rhythm, time

the best
washing
performance

SENSING

PROCESSING

DETERMINATION

EFFECT

울

란제리

6

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.

7

3. PARTS IDENTIFICATION

■ ACCESSORIES

울

란

제

리

란제리

Water Circulation Nozzle

A

Safety Cover (PLC Moderm)

8

󱀊 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 first lower side to remove easily.

󳢯 Keep the shipping bolts and

spanner for future use.

󳢯 Insert the 4 caps

(provided) into the hole.

󳢯 Turn clockwise to raise;

counterclockwise to lower.

4. INSTALLATION & TEST

9

■ 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.

· Avoid connecting several electric devices, as

doing so may cause a fire.

· Make sure that the hose is not twisted.

· Avoid submerging the end of the hose.

10

SOFTENER

MAX

󳞊 TEST OPERATION

󳢯Connect the power plug to

the outlet.

󳢯Connect the inlet hoses.

󳢯Power off and the power on.
󳢯Press the SPIN SPEED button.
󳢯

Press the START/PAUSE button.

󳢯Check the spin and drain

functions.

󳢯

Listen for a click to determine
if the door is unlocking.

󳢯Listen for a click to determine if

the door has locked.

󳢯If SVC is needed during check,

remove the remaining water by
pulling out the hose cap.

Preparation for Press the POWER button. Press

the

Start/Pause

washing. button.

󳢯Press the WASH/RINSE 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.

Check the water heating Check the automatic Check the water supply.
function. reverse rotation.

Check the drain and spin

Press the

Water removal

functions.

START/PAUSE button.

11

5. OPERATION

SPINSENSE

WATER
PLUS

TM

SPINSENSE

WATER
PLUS

TM

■ WM2277H*/WM2177H*//WM2477H*

■ WM2077CW//WM2377C*

■ WM2677H*M

12

• 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.

•

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 .

• Use this option to prevent
Press and hold PRE WAS
lock/unlock control.

• When Child lock is set, CH
buttons are disabled exce
You can lock the washer w

• Use this button to Start/
Stop the washer.

• Se
lo

• To
b
op

• To
b

• Pr

• This display shows:

a) the estimated time remaining in the

cycle when operating.

b) an error code when an error has been

detected.

13

SPINSENSE

WATER
PLUS

TM

CHILD LOCK lights and all

• 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.

• Water Plus: Adds extra water to the wash and rinse cycles for

superior results.

• Lights whenever the door
of the washer is locked.

• The door can be unlocked
by pressing the
Start/Pause button to
stop the washer.

• Allows the start of any cycle
to be delayed for 1~12
hours.

load you are washing.

button repeatedly to cycle through available
options.

button repeatedly until the desired setting is on.

• These lights show which portion of
the cycle the washer is operating.

14

6. WIRING DIAGRAM/PROGRAM CHART

■ WM2277H*//WM2477H*

■ WM2077CW//WM2377C*

15

BN

BK WH

GN

/

YL

GN

/

YL

RD

GN

BL

WH

NOISE
FILTER

POWER
CORD

123
123

123
123

INLET VALVE

DISPLAY PWB

10 11 12

678923451

10 11 12

678923451

10 11 12 13

678923451

10 11 12 13

678923451

10 11 12

678923451

10 11 12

678923451

10 11 12 13

678923451

10 11 12 13

678923451

10 11 12 13

678923451

10 11 12

678923451

3214
321

321
321

4

MAIN PWB

BN

BK WH

GN

/

YL

GN

/

YL

GN

BN

RD BL NA BL

BK

BK BK BK BK

BK

VT

SB ORSB BLBL RD RD BKBL

WHWH

SB BL

YL YL YL

YL

YL

RDRDBL GY

YL RD

BL

BL

YL

RD

BL

BL WH

WHWH

WH

RD

BL WH

GY

RD

BL WH

GY

WH

RD

GN

/

YL

123456
123

213
213 4

2314
231

123
1234

123
123

321
321

321
32156

123456
1234

4321
432156

NA

RD

CON3 CON2 CON1

CON2 CON1

RD

WH

10 11

678923451

CON3

NA

NA WHBLBL YL

1234
1234

BLRD WH

WH

WH

BK

BK

YL

RD

BK

RD

YL

BL

BK BK SB

SB

NA

BN

WH

NOISE

FILTER

PLC MODEM

DOOR LOCK SWITCH

DRAIN PUMP

HOT
VALV E

PRE
WASH

MAIN
WASH

BLEACH

CIRCULATION PUMP

MOTOR

BALL
SENSOR

PRESSURE
SWITCH

THERMISTOR

POWER
CORD

#250TERMINAL

(NOTES)

3PIN CONNECTOR
4PIN CONNECTOR
5PIN CONNECTOR

6PIN CONNECTOR

12PIN CONNECTOR

13PIN CONNECTOR

#250

TERMINAL+HOUSING
1PIN CONNECTOR
2PIN CONNECTOR

RING TERMINAL GROUND

4

P
T
C

SOLE
NOID

P
T
C

321

234

32
321

1

12
1

UVW

2

12
12

3

3

13
132

2

12
123

3

12
123

3

4
4

23
231144

5

5

21
213

3

5

123
123

123
123

Ha

Hb

GND

FUSE

WASHING
HEATER

12 12 12 12

8
7
6
5
4
3
2
1

1
2

■ WM2177H*

■ WM2677H*M

16

**

Cool-down

**Approx.

(Minutes)

* Wash time is in minutes.
** The total working time will vary with the load size,

water temperature and ambient temperature.

17

7. TROUBLESHOOTING

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 SPIN SPEED and SOIL LEVEL 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

SPIN SPEED and SOIL LEVEL 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 clockwise. rpm (40~50)

2 times Low speed Spin. rpm

3 times High speed Spin. rpm

4 times Inlet valve for prewash turns on. Water level frequency (25~65)

5 times Inlet valve for main wash turns on. Water level frequency (25~65)

6 times Inlet valve for hot water turns on. Water level frequency (25~65)

7 times Inlet valve for bleach turns on. Water level frequency (25~65)

8 times Tumble counterclockwise. rpm (40~50)

9 times

Heater turns on for 3 sec. Water temperature

10 times

Circulation pump turns on.

Water level frequency (25~65)

11 times

Drain pump turns on.

Water level frequency (25~65)

12 times

Power off and unlock the door.

Turn off all lamps.

Number of times the

Start/Pause button is pressed

:

WM2277H*/WM2177H*//WM2477H*

:

WM2677H*M

1)

:

WM2077CW//WM2377C*

18

7-4. ERROR DISPLAY

󳢯 If you press the START/PAUSE button when an error is displayed, any error except dewill

disappear and the machine will go into the pause status.

󳢯 In case of de,de,deif the error is not resolved within 20 sec., or 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 de, 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 things 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.

7

HEATING

ERROR

19

ERROR SYMPTOM CAUSE

OVER

CURRENT

ERROR

•

MAIN PWB

ASSEMBLY is out of order.

•

Winding in the STATOR ASSEMBLY is short-circuited.

• The connector (3-pin, male, white) in the MOTOR
HARNESS is not connected to the connector
(3-pin, female, white) of STATOR ASSEMBLY.

• The electric contact between the connectors
(3-pin, male, white) in the MOTOR HARNESS
and 4-pin, female, white connector in the MAIN PWB
ASSEMBLY is bad or unstable.

• The MOTOR HARNESS between the STATOR
ASSEMBLY and MAIN PWB ASSEMBLY is cut (open
circuited).

• The hall sensor is out of order/defective.

8

9

LOCKED

MOTOR
ERROR

• Loose Ball Sensor Connector.

• Ball Sensor is out of order.

※ Displayed only when the START/PAUSE button is first

pressed in the QC Test Mode.

10

BALL SENSOR

ERROR

•

The washer experienced a power failure.

12

POWER

FAILURE

• EEPROM is out of order.
※ Displayed only when the START/PAUSE button is first

pressed in the QC Test Mode.

11

EEPROM

ERROR

20

8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION

8. ERROR DIAGNOSIS AND CHECK LIST

SYMPTOM GUIDE FOR SERVICE CALL

No power

Water inlet trouble

Is the power plug connected firmly to
120 V AC outlet?

Power failure? or Breaker opened?
Is the outlet controlled by a switch?

Visit to service.

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 service.

Clean the filter of
inlet valve

YES

NO

YES

YES

NO

NO

NO

YES

21

SYMPTOM GUIDE FOR SERVICE CALL

Door error

Drain trouble

Was the load too large?

Visit to service.

Visit to service.

22

SYMPTOM GUIDE FOR SERVICE CALL

Suds overflow from the
appliance.
(In this condition, wash and
spin do not operate normally)

Is a low-sudsing detergent used?

Is the proper amount of detergent used
as recommended?

Recommend to reduce the amount
of detergent.

Is liquid laundry product put in the correct
compartment of the dispenser?

Is the cap clogged?

Explain proper use of liquid laundry products.

Clean the compartment.

Visit to service.

LOW-SUDSING

󳢮 This appliance has an automatic suds sensing function which

prevents overflow.

󳢮 When excessive suds are sensed, the suds removing

implementations such as drain, water input, pause will operate,
without rotating the drum.

Liquid laundry products do not

flow in.

YES

YES

MAX

SOFTENER

YES

YES

23

NO

YES

YES

YES

YES

NO

NO

NO

NO

YES

Connector

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK



WH

SB

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK



WH

SB

Is the supplied voltage 110/120 V AC?

Is the voltage between the 2 FILTER ASSEMBLY
connectors 120 V AC?

Is the LED (1) on?

Are the connectors (2) on the PWB loose?

Is wire of the DISPLAY PWB ASSEMBLY
broken?

Replace DISPLAY PWB ASSEMBLY
or repair wire.

Check the fuse or reset
the circuit breaker.

Replace the FILTER
ASSEMBLY (CIRC).

Replace MAIN PWB
ASSEMBLY.

Reconnect.

Replace the MAIN PWB
ASSEMBLY.

NO POWER

8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING

1. Be careful of electric shock if disconnecting parts while troubleshooting.

2. First of all, check the connection of each electrical terminal with the wiring diagram.

3. If you replace the MAIN PWB ASSEMBLY, reinsert the connectors correctly.

CAUTION

24

YES

YES

YES

NO

NO

Higher

Unbalance Part

Lower

Adjustable feet

Lock

Nut

Adjustable feet

Base Packing

Level

Have all the transit bolts and base packing
been removed?

Remove the transit bolts
and Base packing.

Move the washer or
reinforce the floor.

Is the washer installed on a solidly constructed
floor?

Check if the washer is perfectly level as follows:

Check the leveling of the washer with a Level
and check that the washer is stable.

Put an unbalance part (rubber) inside of drum
and start QC test mode and run in high spin
(Refer to section 7-2).
When the machine is spinning in high speed,
verify that it is stable.

VIBRATION & NOISE IN SPIN

If it is not stable, adjust feet accordingly. After
the washer is level, tighten the lock nuts up
against of the base of the washer. All lock nuts
must be tightened.

If you do not have the unbalance part, put 4.5 to

6.5 lbs (2 to 3 kg) of clothing. Once loaded,
press power, Rinse+Spin and the start/pause
button in sequence.
When the machine is spinning in high speed,
verify that it is stable.

25

If it still has severe vibration and noise, regulate a specific spin speed that generates excessive vibration and
noise as follows:

1) Put an unbalance part (rubber) inside of the drum.

2) Start the QC test mode (Refer to section 7-2).

3) Press Delay Wash button, then ‘ ’ is displayed.

4) Press the Spin Speed button repeatedly to select Extra High.

5) Press the Quick Cycle button, the spin speed is displayed.

6) Press the Start/Pause button.

7) Press the Beeper button repeatedly to set spin speed (600, 900, 1020, 1120 rpm) and check if there is vibration
and noise.

8) If there is no vibration and noise, increase the spin speed by pressing Beeper button.

9) If there is vibration and noise, rotate the Cycle selector knob clockwise to reduce the Spin Speed (reduce by 50
and 100 rpm). In case of 600 rpm, it can not reduce the spin speed.

10) If vibration and noise are reduced, press the Quick Cycle button to store (2 beep sounds).

* If you want to return to factory default spin speed setting, repeat above steps except step 9).

26

NO

YES

NO

NO

YES

NO

YES

YES

NO

NO

YES

YES

YES

NO

NO

NO

YES

SOFTENER

MAX

Is water supply shut-off?

Is the tap opened?

When you press both SPIN SPEED button and
SOIL LEVEL button simultaneously, is the water
level frequency below 246?

Is the inlet valve filter clogged?

Is resistance between each terminal of INLET
VALVE ASSEMBLY 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 receptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?

Has detergent been 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 place.

Clean the dispenser.

NO WATER SUPPLY

DETERGENT DOES NOT FLOW IN

27

Softener
cap

Liquid detergent cap

SOFTENER

MAX

SOFTENER

MAX

Hot water

Prewash

Bleach

Main wash

Bleach cap

SOFTENER

ABNORMAL SOUND

LIQUID DETERGENT/SOFTENER/BLEACH DOES NOT FLOW IN

Secure the bolt.

Replace the STATOR
ASSEMBLY or ROTOR
ASSEMBLY.

Refer to

^NO WATER SUPPLY_

Check the wiring on the
dispenser.

Put it in the correct
compartment.

Clean the Cap and
Container.

Is the motor bolt loosened?

Is there friction noise coming from the motor?

Is water supplied?

Are the plugs correctly connected to the terminals of
the INLET VALVE ASSEMBLY?

Is liquid detergent/softener/bleach put in the correct
compartment of the drawer?

Is the liquid detergent/softener/bleach cap clogged?

28

NO

YES

YES

YES

YES

NO

NO

NO

NO

YES

YES

NO

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK



WH

SB

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK



WH

SB

Replace the
SENSOR SWITCH
ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY.

Repair the DRAIN HOSE
ASSEMBLY.

Remove foreign material.

Reconnect or repair the
connector

Replace the DRAIN
PUMP ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY.

When

pressing SPIN SPEED and SOIL LEVEL at the
same time after draining, is the water level frequency
255?
When pressing

SPIN SPEED and SOIL LEVEL

buttons
at the same time while washing, is the water level
frequency between 230 - 243 ?

Check the voltage between two pins while pressing
the POWER button. Is the voltage 120 V AC?

Is the drain hose twisted or frozen?

Is the impeller of the drain pump clogged?

Is the connector disconnected, disassembled?

Is the coil of the drain pump too high or low?
(resistance of the coil is 10-20 Ω)

When checking voltage between connectors during

spin, is the voltage 120 V AC as in the figure?

HEATING WITHOUT WATER

DRAIN MALFUNCTION

29

Extra Hot: 70 °C

25

(1)

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK

WH

SB

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK

WH

SB

Push the THERMISTOR
tightly to the rubber.

When checking the THERMISTOR on the tub,
is the THERMISTOR loose?

HEATING CONTINUOUSLY ABOVE

THE SETTING WATER TEMPERATURE

WASH HEATER TROUBLE

30

YES

YES

YES

YESYES

NO

NO

NO

NO

NO

Hose
Connector
(White)

Connector

Connector

Hose

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK



WH

SB

WILL NOT CIRCULATE WATER

Is the impeller of the drain pump clogged?

Are the Hose Connector and/or Hose clogged?

Is the connector disconnected, disassembled?

Is the coil of the right side of drain pump open
or short circuited? (Coil R is 18-30 Ω)

When checking voltage between the
connectors during spin, is the voltage 120 V AC,
as the figure?

Remove foreign material.

Remove foreign material.

Reconnect or repair
the connector.

Replace PUMP MOTOR
ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY.

31

(1)

(2)

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK

WH

SB

SB

SB

BL

YL

BL

BL

YL

WH WH

WH

WH

WH

SB

RD

RD

BL

RD

YL

BK

BK

WH

SB

SPIN TROUBLE

Check the SENSOR SWITCH
ASSEMBLY or HOSE (Pressure).
If the problem is on the

SENSOR
SWITCH ASSEMBLY or the
HOSE, replace the SENSOR
SWITCH ASSEMBLY or the
HOSE.

Normal

Correct the connection.

Replace the STATOR
ASSEMBLY

Check during spin if the frequency of the water
level is 248 or more.

Press the START/PAUSE button 2 times in QC
Test mode, is the drum spinning at low speed?

Is it disconnected, or disassembled?
[Red: 3pin (1), NA: 4pin (2)]

Check the motor connector, Is the resistance of
the terminal the same as the figure?

MOTOR TERMINAL

Resistance of terminal:

󳡉

-󳡊/󳡊-󳡋/󳡋-󳡉: About 5 Ω -15 Ω

Replace the MAIN PWB ASSEMBLY

Does the spring of Latch Hook actuate?

Is there clicking sound once or twice when the
START/ PAUSE button is pressed to start the cycle?

Is DOOR SWITCH ASSEMBLY broken?

Replace Door Assembly.

Check the DOOR SWITCH
ASSEMBLY Connector and
MAIN PWB ASSEMBLY
(Red 3 pin, Yellow 4 pin and
white 3 pin connector (1)).

Replace the DOOR
SWITCH ASSEMBLY.

󳡋󳡊󳡉

32

9. DISASSEMBLY INSTRUCTIONS

DISPLAY PWB ASSEMBLY

CONTROL PANEL ASSEMBLY

󳢬 Be sure to unplug the machine out of the outlet before disassembling and repairing the parts.

①①

Unscrew 2 screws on the back of the top plate.

②②

Pull the top plate backward and upward as shown.

③③

Disconnect the Display PWB Assembly connector

from Trans cable.

④④

Pull out the drawer and unscrew 2 screws.

⑤⑤

Lift the left side of the Control Panel Assembly and

pull it out.

⑥⑥

Unscrew the 9 screws from the Control Panel

Assembly.

⑦⑦

Disassemble the Display PWB Assembly.

󳦢󳦢

󳦢󳦢

DRAWER

TOP PLATE ASSEMBLY

CONTROL PANEL ASSEMBLY

33

①①

Disconnect the POWER connector and SENSOR

SWITCH ASSEMBLY.

②②

Remove the Protect Cover.

③③

Disconnect the connectors.

④④

Unscrew 1 screw on the back.

⑤⑤

Disassemble the Main PWB.

MAIN PWB ASSEMBLY

PROTECT COVER

34

①①

Disassemble the top plate assembly.

②②

Pull out the drawer.

③③

Push out the DISPENSER ASSEMBLY after

unscrew 2 screws.

④④

Unscrew the nut at the lower part of the dispenser.

⑤⑤

Disassemble the 4 connectors from the valves.

⑥⑥

Unscrew 2 screws from the back of the cabinet.

①①

Disassemble two (or three) connectors from

the NOISE FILTER.

②②

Unscrew a screw from the TOP BRACKET.

※※

Wire Color

①①

Blue Housing (OR-BK)

②②

White Housing (WH-BK)

③③

Blue Housing (GY-BK)

④④

Red Housing (BL-BK)

DISPENSER ASSEMBLY

NOISE FILTER

35

①①

Unscrew the 4 screws from upper of the canbinet

cover.

②②

Unscrew the screw from filter cover.

③③

Put a flat (

-

) screwdriver or putty knife into the both

sides of the filter cover, and pull it out.

④④

Unscrew the screw from the lower side of the cabinet

cover.

CABINET COVER

36

⑤⑤

Open the door.

⑥⑥

Disassemble the clamp assembly.

⑦⑦

Tilt the cabinet cover.

⑧⑧

Disconnect the door switch connector.

※※

NOTE: When assembling the CABINET

COVER, connect the connector.

⑨⑨

Lift and separate the cabinet cover.

⑩⑩

Disassemble the clamp assembly.

⑪⑪

Disassemble the Gasket.

37

①①

Open the door.

②②

Unscrew the 7 screws from the HINGE COVER.

③③

Put a flat ( - ) screwdriver into the openng of the hinge,

and pull out the hinge cover.

④④

Unscrew a screw from the lower side of door.

⑤⑤

Disassemble the door upward.

DOOR

①①

Open the door and disassemble the CLAMP

ASSEMBLY.

②②

Unscrew the 2 screws.

DOOR LOCK SWITCH ASSEMBLY

※※

Be careful! The door is heavy.

※※

NOTE

• Reconnect the connector after replacing the
DOOR SWITCH ASSEMBLY.

38

PUMP

HEATER

THERMISTOR

①①

Disassemble the cabinet cover.

②②

Separate the pump hose, the bellows
and the circulation hose assembly from the

pump assembly.

③③

Disassemble the pump assembly in arrow

direction.

①①

Disassemble the cabinet cover.

②②

Separate 2 connectors from the heater.

③③

Loosen the nut and pull out the heater.

①①

Disassemble the cabinet cover.

②②

Unplug the white connector from the thermistor.

③③

Pull it out by holding the bracket of the

thermistor.

※※

CAUTION

• When assembling the heater, insert the
heater into the heater clip on the bottom of
the tub.

• Tighten the fastening nut so the heater is

secure.

39

WHEN FOREIGN OBJECT IS STUCK BETWEEN DRUM AND TUB

①①

Disassemble the cabinet cover.

②②

Separate the heater from the tub.

③③

Remove any foreign objects (wire, coin, etc.) by

inserting a long bar in the opening.

MOTOR/DAMPER

①①

Disassemble the back cover.

②②

Remove the bolt.

③③

Pull out the Rotor.

①①

Unscrew the 2 screws from the tub bracket.

②②

Remove the 6 bolts on the stator.

③③

Unplug the 2 connectors from the stator.

①①

Disassemble the damper hinges from the tub

and base.

②②

Separate the dampers.

※※

NOTE

• Once removed, replace the damper pin with
new one.

40

10-1. CABINET & CONTROL PANEL ASSEMBLY

10. EXPLODED VIEW

A201

A155

A440

A430

A100

A101

A105 A106

F110

A104

A102

A103

A220

A303

A485

A455

F215

F210

A450

A110

A111

A150

A154

A141

A410

A152

A151 A153

A131

A390

A130

A140

A310

A300

A200

A133

41

10-2.

DRUM & TUB ASSEMBLY

K115

K131

K510

K311

F315

F465

K125

F466

F467

K550

F463

F140

K411

K410

K110

K140

K320

K310

K111

K130

K530

F464

F310

K121

K122

K611

K610

K123

K143

K360

K350

K351

K141

F145

F468

K520

F461

K540

K105

K135

K340

K344

K346K342

42

10-3.

DISPENSER ASSEMBLY

HOT (RED)

COLD (BLUE)

F300

F227

F220

A275

A276

F432

F130

F120

F435

F441

F440

F225

F430

F160

F170

F321

F322F323

F462

F436

F431

F226