25
FOR LG TECHNICIAN
WASH HEATER TROUBLE
HEATING CONTINUOUSLY ABOVE
THE SETTING WATER TEMPERATURE
Replace the MAIN
PWB ASSEMBLY.
Check if inlet hose is
connected to a hot
faucet; other-
wise, replace PWB
ASSEMBLY(Main)
Replace Thermister
Replace the HEATER
ASSEMBLY.
Push the THERMIS-
TOR tightly to the
rubber.
Normal
NO
NO
NO
NO
NO
YES
YES
YES
YES
NO
When checking the voltage between
connector during whites washing. is the
voltage 127V~?
When pressing Water Temp. during, is the
displayed temperature is over 10°C higher
than the selected temp?
Is the resistance between Thermistor
Comectors 2.5kΩ~180kΩ)
After power off and the heater terminal is
disconnected, is the resistance 10Ω~30Ω
When checking THERMISTOR on the tub is
the THERMISTOR loosened above 2mm from
the rubber?
After power off, is the resistance of wire
(YELLOW-BLACK) connectors between
10Ω~30Ω?
