F1232RDSW2 - LG Washing Machine Service Manual (repair manual). Page 14

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

7. TROUBLE SHOOTING

7-1.BEFORE SVC CHECKING

7-2.QC TEST MODE.

1 Pressing Rinse, and Spin. button simultaneously.
2 Press the Power       button, while the above condition.

3 Press the Start/Pause button as follows.

The digits means water level frequency(10

-1

kHz) 

ex) 241 : Water level frequency = 241

10

-1

kHz

=24.1 kHz

none 

1 time 

2 times 

3 times 

4 times 

5 times 

6 times 

7 times 

8 times 

9 times 

10 times 

11 times 

12 times 

13 times

14 times 

15 times

16 times 

Turns on all lamps and locks the door. 

Dry heater turns on

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 steam turns on.

Inlet valve for dry water turns on.

Tumble counterclockwise

Wash heater turns on for 3 sec.

Circulation pump turns on.

Drain pump turns on

Water level Sensor for steam

Steam Heater turns on

Power off and unlock the door.

water temperature

rpm (42~50)

rpm (55~65)

rpm (110~120)

Water level frequency (25~65)

Water level frequency (25~65)

Water level frequency (25~65)

Water level frequency (25~65)

Water level frequency (25~65)

rpm (42~50)

Water temperature

Water level frequency (25~65) 

Water level frequency (25~65)

Water level frequency of TSG (0~255)

TSG temperature

Turn off all lamps.

number

Check out

Display Status

Thermistor in tub : Press the [Temp.] button.

Thermistor in dry duct : Press the [Turbo Steam] button.

7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR

AT OPERATING CONDITION.

Press the Rinse and Temp. button simultaneously.

7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY