DWM1000, DWM1001 - LG Washing Machine Service Manual (repair manual). Page 23

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22
NO
YES
YES
WASH HEATER TROUBLE
4
1
AC 220-240V
NO
NO
YES
NO
YES
(1)
Replace the thermistor
(6322FR2046B)
Push the thermistor
tightly to the rubber.
When disconnect the connector (1) on the 
PWB assembly is the resistance of the 
Natural connectors 
~①( White),
④(Blue / White)₩between  2.5k
to 180k
(105
~0
)?
When checking thermistor on the tub, 
is the thermistor loosened above 2mm from 
the rubber?
When checking the voltage between two
receptacles of the PWB assembly during
washing.
Is the voltage AC 220-240V?
After power off, is the resistance between yellow
wire and red wire of
connector 10 to 30 ?
After power off, is the resistance of heater
10 to 30 ?
Replace the PWB
assembly.
Normal.
Replace the heater 
assembly.
HEATING CONTINUOUSLY ABOVE 
THE SETTING WATER TEMPERATURE
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