WD-1243FB - LG Washing Machine Service Manual (repair manual). Page 17

8. TROUBLESHOOTING

8-1. BEFORE PERFORMING SERVICE

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

8-2. QC TEST MODE.  

① Pressing  RINSE, and  SPIN button simultaneously.
② Power supply 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₩

Pressing number of

［START/PAUSE］button

Checking Point

Display Status

None

All lamps turn on

1 time

Clockwise spin (right)

Motor rpm (About 45)

2 times

Low speed spin

Motor rpm (About 63~67)

3 times

High speed spin

Motor rpm (About 114~117)

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

Counterclockwise spin (left)

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

■ WD-1050(5)F(H)(B) / WD-1253(5)F(H)(B) / WD-1054(6)F(H)B / WD-1254(6)F(H)B