WD-11155FB - LG Washing Machine Service Manual (repair manual). Page 14

7-1.BEFORE PERFORMING SERVICE

■ Be careful of electric shock or disconnecting the parts while trouble shooting.
■ Voltage of each terminal in 220-240V and DC while applying an electric current.

7-2.QC TEST MODE.

① Pressing Crease Care, and Pre Wash button simultaneously.
② Power button ON with pressing upper two button. then buzzer sound twice.
③ Press the START/PAUSE button as follows.

~Press the START/PAUSE button more 4 times until stop spinning₩

7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY

Press the Bio and Time delay button simultaneously.

ex) 241 : Water level frequency = 241

× 10-1kHz

=24.1kHz

7. TROUBLESHOOTING

The digits means water level frequency (10

-1 

kHz) 

Pressing number of

［START/PAUSE］button

Checking Point

Display Status

None

All lamps turn on

1 time

Counterclockwise spin (left)

Motor rpm (About 45)

2 times

Low speed Spin

Motor rpm (About 63~67)

3 times

High speed Spin

Motor rpm (About 79~85) : WD(M)-80150FB

Motor rpm (About 100~106) : WD(M)-10150(5)FB/WD-90150(5)FB/WD-1025FB

/ WD-10160(5)FB/WD-10164FB

Motor rpm (About 107~103) : WD(M)-11150(5)FB/WD-11151(6)FB/DWD-11151(6)FB / NWD-11151(6)FD

Motor rpm (About 114~120) : WD(M)-12150(5)FB/WD-12160(5)FB/WD-12164FB

Motor rpm (About 122~127) : WD(M)-13150(5)FB/WD-13151(6)FB/DWD-13151(6)FB/ NWD-13151(6)FD

4 times

Inlet valve for pre-wash operation

Water level frequency (25~65)

5 times

Inlet valve for main-wash operation

Water level frequency (25~65)

Hot inlet valve in case of hot water fill

6 times

Inlet valve for main-wash operation 

Water level frequency (25~65)

7 times

Clockwise spin (Right)

Motor rpm (About 45)

8 times

A Heater is in operation for 3 sec.

Water Temperature

9 times

Draining pump operation

Water level frequency

10 times

Auto off operation