WD-12330ND, WD-12332TD - LG Washing Machine Service Manual (repair manual). Page 23

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22
YES
WASH HEATER TROUBLE
When checking the voltage between 
connector the PWB assembly (Main)during 
Cotton 95°C washing, Is the voltage 
220 - 240V    ?
Replace the PWB 
assembly (Main)
YES
NO
After power off and the heater terminal is
disconnected, is the resistance 10 to 30   ?
Replace the heater 
assembly
NO
After power off,is the resistance of wire
(RED-YELLOW) connectors between
10    to 30   ?
Normal
NO
YES
RED
YELLOW
1
2
3
  ~    
Push the thermistor
tightly to the rubber.
When checking thermistor on the tub, 
is the thermistor loosened above 2mm from 
the rubber?
HEATING CONTINUOUSLY ABOVE 
THE SETTING WATER TEMPERATURE
NO
YES
6
3
220 - 240V~
MAIN PWB ASSEMBLY
(1)
6
3
MAIN PWB ASSEMBLY
Replace the THERMISTOR
(6322FR2046C)
When disconnect the connector (1) on the  
MAIN PWB ASSEMBLY is the resistance of the 
natural connectors 
(White),
(Blue/White)
between  2.5k
to 180k
(105
~0
)?
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