LG WD-10120FD Service Manual page 24

MAIN PWB ASSEMBLY
2
1
220 - 240V~
YELLOW
RED
MAIN PWB ASSEMBLY
2
(1)
4
WASH HEATER TROUBLE
When checking the voltage between
connectors ( , ) during
1 2
whites washing, Is the voltage
~
220 - 240V ?
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 (Blue/White),
between 2.5k to 180k
(105 ~0 )?
YES
When checking THERMISTOR on the tub is the
THERMISTOR loosened above 2mm from
the rubber?
YES
1 2 3
NO
?
(Sky blue)
1 2 3
4 5 6
23
Replace the MAIN PWB
NO
ASSEMBLY
YES
Normal
NO
Replace the
HEATER ASSEMBLY
Replace the THERMISTOR
NO
(6322FR2046B)
YES
Push the THERMISTOR
tightly to the rubber.