LG WM2487HM series - Troubleshooting Guide; Before Performing Service; QC Test Mode

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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 SPIN SPEED and SOIL LEVEL 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.
Check Point Display Status
None Turns on all lamps and locks the door.
1 time Tumble clockwise. rpm (42~50)
2 times Low speed Spin. rpm (55~65)
3 times High speed Spin. rpm (125~135)
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 steam turns on. Water level frequency (25~65)
8 times Inlet valve for bleach turns on. Water level frequency (25~65)
9 times Tumble counterclockwise. rpm (42~50)
10 times
Heater turns on for 3 sec. Water temperature
11 times Circulation pump turns on. Water level frequency (25~65)
12 times
Drain pump turns on. Water level frequency (25~65)
13 times Water level Sensor for Steam
Water level frequency of TSG(0~255)
14 times Steam Heater turns on for 1.2 sec. TSG temperature
15 times Off -
Number of times the
Start/Pause button is pressed
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
󳢬 Press the WASH/RINSE and DELAY WASH button simultaneously.
So, for example a display indicating 241: a Water level frequency of 241 x.1 kHz
= 24.1 kHz
The digits indicate the water level frequency ( x.1 kHz ).