LG WM3988HWM Service Manual page 27

Is
Is the connector connected
to heater disconnected or
disassembled?
Steam generator heater
Wash heater
Is Check heater
resistance out of range?
(12~18 Ω)
(Refer to 9-6 Heater
assembly.)
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HEATING ERROR
displayed?
Yes
Reconnect or
repair
Yes
the connector
No
Replace the
HEATER
Yes
ASSEMBLY
No
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Is the connector connected to
thermistor disconnected or
disassembled?
Steam generator thermistor
Wash thermistor
No
Is thermistor resistance
out of range?
°C
(about 39.5 kΩ at 30
(Refer to 9-7 thermistor
assembly)
No
Check the trans of water
infiltration into thermistor
terminal.
- Does the water infiltrate
thermistor terminal?
[Note]
Chances that the cause occurs from the
main controller are very little.
Sensing part of the circuit (tE) consists of
only resistors and capacitors.
26
Reconnect or
repair
Yes
the connector
Dry thermistor
Dry thermistor
Replace the
Yes
THERMISTOR
ASSEMBLY
)
Replace the
Yes
THERMISTOR
ASSEMBLY