DOWNLOAD LG WM3050CW Service Manual ↓ Size: 8.72 MB | Pages: 38 in PDF or view online for FREE

• This display shows:

  a) the estimated time remaining

      in the cycle when operation.

  b) an error code when an error

      has been detected.

• Rotate the cycle selector knob

  to select the cycle designed for

  different types of fabric and

  soil level.

• Use this button to

  start/stop the

  washer.

• 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.

• 

 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: Select this option to rinse and

  spin a load separately from a regular cycle.

• 

DELAY WASH: Once you have selected the cycle 

  

  

• 

WATER PLUS:Select this option to add extra

  water to the wash and rinse cycles for superior

  results, especially with large or bulky items

  start of the wash cycle.

  and other settings, press this button to delay the 

.

• Use this button to turn

   power

CUSTOM PROGRAM, COLDWASH™ 

• COLDWASH™ : Use this function to wash without hot water and heating.

• CUSTOM PROGRAM allows you to store a customized wash cycle

  for future use.

• Light whenever the door of the washer is locked.

• The door can be unlocked by pressing the

   button to stop the washer.

5. OPERATION

EST. TIME REMAINING 

DOOR LOCKED lamp 

POWER button 

START/PAUSE button 

OPTION button

CYCLE SELECTOR 

Wash/temp., Spin speed, Soil Level 

6. WIRING DIAGRAM

/

PROGRAM CHART

*

*

Cool-down

**Approx.

(Minutes)

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

    water temperature and ambient temperature.

Normal

Bulky

/Large

Hand Wash

/Wool

Baby Wear

25

98

51
57
55
40

111

40

20
13

18

70

WASH

1 2
1 2

INLET VALVE

WH

1 2 3 4 5 6

1 2 3

1 2 3

1 2 3

4

1 2 3 4

1 2 3 4

2 1

2 1

2 1

2 1

5 6

1 2 3 4 5 6

1 2 3 4 5 6

1 2 3 4

1 2 3 4

3 2 1

3 2 1

1 2 3

1 2 3

4

4

MOTOR

PRESSURE
 SENSOR

THERMISTOR

POWER
 CORD

+HOUSING

3 2
3 2 1

1

1 2
1

U V W

2 3

3

1 2
1 2 3

3

4 3
4 3 2

2

1

1

1 2
1 2 3

3

5 4
5 4 3

3 2

2 1

1

a

H

b

H

D

N

G

1 2

1 2

1 2

1 2

/

NOISE

FILTER

1 2 3

1 2 3

3 2 1

3 2 1

DOOR LOCK 

4

SOLE

NOID

3

2

1

2

3

4

5

/

E

S

U

F

E

S

U

F

7. TROUBLESHOOTING

7-1. BEFORE PERFORMING SERVICE

■

Be careful of electric shock when disconnecting parts while troubleshooting.

■

The voltage of each terminal is 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 WASH/RINSE and SPIN SPEED 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

Number of times the

Start/Pause button

is pressed

Check Poin

Display Status

None
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
10 times
11 times

Turns on all lamps and  locks the door.
Tumble clockwise.
Low speed Spin.
High speed Spin.
Inlet valve for prewash turns on.
Inlet valve for main wash turns on.
Inlet valve for hot water turns on.
Inlet valve for bleach turns on.
Tumble counterclockwise.
Water Temperature (Thermistor)
Drain pump turns on.
Off

rpm (42~50)
rpm (55~65)
rpm (105~115)
Water level frequency (225~265)
Water level frequency (225~265)
Water level frequency (225~265)
Water level frequency(225~265)
rpm (42~50)
Water Temperature [°C]
Water level frequency (225~265) 

• Press the CUSTOM PROGRAM and PRE-WASH buttons simultaneously.

A display indicating 41 means a water level frequency of 24.1 kHz. 

The digits indicate the water level frequency.

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 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 『

』, power will not be turned off.

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.

IMBALANCE

ERROR

• Not fully drained within 10 minutes.

DRAIN

ERROR

• Water is overflowing (water level frequency is over 213).

※ If               is displayed, the drain pump will operate to

drain the water automatically.

OVER FLOW

ERROR

• The SENSOR SWITCH ASSEMBLY is out of order.

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.

DOOR OPEN

ERROR

• The THERMISTOR is out order.

HEATING

ERROR