LG WD-14331(6)AD Service Manual page 24

MAIN PWB ASSEMBLY
220-240V
YELLOW
RED
MAIN PWB ASSEMBLY
2 4
(1)
WASH HEATER TROUBLE
When checking the voltage between
connectors ( , ) during
1 2
whites washing, Is the voltage
~
220 - 240V ?
YES
After power off,is the resistance of wire
(RED-YELLOW) connectors between
10 ~30 ?
After power off and the heater terminal is
disconnected, is the resistance 10~30
HEATING CONTINUOUSLY ABOVE
THE SETTING WATER TEMPERATURE
When disconnect the connector (1) on the
MAIN PWB ASSEMBLY is the resistance of the
natural connectors ~ (White/Red),
(Blue/White)₩ between
2.5kΩ to 180kΩ
(105 ℃ ~0 ℃ )?
YES
When checking THERMISTOR on the tub is the
THERMISTOR loosened above 2mm from
the rubber?
1 2 3
NO
?
4
2
23
Replace the MAIN PWB
NO
ASSEMBLY
YES
Normal
NO
Replace the
HEATER ASSEMBLY
Replace the THERMISTOR
NO
(6322FR2046C)
YES Push the THERMISTOR
tightly to the rubber.