Read LG WM2550HRCA / WM2550HWCA Service Manual online
15
7. TEST MODE
7-1. SAFETY CAUTION
There’s built-in AC 120V and DC power in output terminal of PWB assembly in common.
Be careful electric shock when disconnecting parts while trouble shooting. (Wear Electro
Static Discharge gloves when working.)
After cutting off the power when changing PWB assembly, disconnect or assemble.
Be careful static when handling PWB assembly, and use Electro Static Discharge plastic
pack when delivering or keeping it.
Be careful electric shock when disconnecting parts while trouble shooting. (Wear Electro
Static Discharge gloves when working.)
After cutting off the power when changing PWB assembly, disconnect or assemble.
Be careful static when handling PWB assembly, and use Electro Static Discharge plastic
pack when delivering or keeping it.
7-2. LOAD TEST MODE
7-3. HOW TO CHECK THE WATER LEVEL FFREQUENCY
1. Press the SPIN SPEED and SOIL LEVEL buttons simultaneously.
Press the WASH/RINSE and DELAY WASH button simultaneously.
The digits indicate the water level frequency ( x.1 kHz ).
= 24.1 kHz
So, for example a display indicating 241: a Water level frequency of 241 x.1 kHz
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.
3. Press the Start/Pause button repeatedly to cycle through the test modes.
None
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
5 times
6 times
7 times
8 times
9 times
10 times
11 times
12 times
13 times
14 times
15 times
11 times
12 times
13 times
14 times
15 times
Turns on all lamps and locks the door.
Tumble clockwise.
Low speed Spin.
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 bleach turns on.
Tumble counterclockwise.
Heater turns on for 3 seconds.
Circulation pump turns on.
Drain pump turns on.
Steam water level sensor operates.
Steam heater turns on for 1.2sec.
off
Inlet valve for main wash turns on.
Inlet valve for hot water turns on.
Inlet valve for steam turns on.
Inlet valve for bleach turns on.
Tumble counterclockwise.
Heater turns on for 3 seconds.
Circulation pump turns on.
Drain pump turns on.
Steam water level sensor operates.
Steam heater turns on for 1.2sec.
off
LOAD TEST MODE
Rpm (45~50)
Rpm (55~60)
Rpm (45~50)
Rpm (55~60)
Rpm (118~120)
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
rpm (42~50)
Water temperature
Water level frequency (25~65)
Water level frequency (25~65)
AG tub water level frequency (0~255)
Steam generator temperature
-
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
rpm (42~50)
Water temperature
Water level frequency (25~65)
Water level frequency (25~65)
AG tub water level frequency (0~255)
Steam generator temperature
-
Number of times the
Start/Pause button is pressed
Check Point
Display Status
The washer must be empty and the controls must be in the off state.
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