WD-1290RD - LG Washing Machine Service Manual (repair manual). Page 14

7. TROUBLE SHOOTING

7-1.BEFORE SVC CHECKING

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.

Pressing  Rinse, and Spin button simultaneously.

Press the Power        button, while the above condition.

Press the Start/Pause button as follows.

7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY

Press the Rinse and Spin button simultaneously.

ex) 241 : Water level frequency = 241

10-1

=24.1

7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION.

■ Thermistor in tub : Press the [Temp.] button.
■ Thermistor in dry duct : Press the [Dry] button.
■ Thermistor in condensing duct : Press the [Time Save] and [Spin] button simultaneously.

The digits means water level frequency(10

-1 

) 

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 Dry Operation.

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

Dry Heater & Dry fan Operation

Dry Duct temperature.

13 times

Power off and unlock the door.

Turn off all lamps.

Number of times the

Start/Pause button is pressed