F1256LDP1 - 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 Press Spin and Temp. buttons simultaneously.
②

② Press Power with above two buttons pressed and then buzzer will sound.
③

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 Intensive and Crease Care 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

Clockwise spin (right)

Motor rpm (About 47)

2 times

Low speed Spin

Motor rpm (About 590~650)

3 times

High speed Spin

Motor rpm (About 950~1050) : WD-1039(0~9)S(N)(T)D(P)

Motor rpm (About 1100~1250) : WD-1239(0~9)S(N)(T)D(P)

Motor rpm (About 1350~1400) : WD-1439(0~9)S(N)(T)D(P)

4 times

Inlet valve for pre-wash operation

Water level frequency (225~265)

5 times

Inlet valve for main-wash operation

Water level frequency (225~265)

Hot inlet valve in case of hot water fill

6 times

Inlet valve for main-wash operation 

Water level frequency (225~265)

7 times

Counterclockwise spin (left)

Motor rpm (About 47)

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