WD-16NEB, WD-16NEW - LG Washing Machine Service Manual (repair manual). Page 15

7. TROUBLESHOOTING

7-1. BEFORE PERFORMING SERVICE

■ Be careful of electric shock when disconnecting parts while troubleshooting.
■ The voltage of each terminal is 120 V AC and DC when the unit is plugged in.

7-2. QC TEST MODE.

The washer must be empty and the controls must be in the off state.

1. Press the WASH/RINSE and SPIN SPEED buttons simultaneously.

2. Press the Power       button, while the above condition. Then buzzer will sound twice.

3. Press the Start/Pause      button repeatedly to cycle through the test modes.

7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY

None

1 time

2 times

3 times

4 times

5 times

6 times

7 times

8 times

9 times

10 times

11 times

Turns on all lamps and  locks the door.

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 bleach turns on.

Tumble counterclockwise.

Water Temperature (Thermistor)

Drain pump turns on.

Off

rpm (42~50)

rpm (55~65)

rpm (105~115)

Water level frequency (225~265)

Water level frequency (225~265)

Water level frequency (225~265)

Water level frequency(225~265)

rpm (42~50)

Water Temperature [°C]

Water level frequency (225~265) 

❋ Press the CUSTOM PROGRAM and PRE-WASH buttons simultaneously.

A display indicating 41 means a water level frequency of 24.1 kHz. 

The digits indicate the water level frequency.

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