LG 41283 Service Manual ▷ View online
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25
8-4. TROUBLESHOOTING WITH ERROR
INLET VALVE ERROR
Is displayed?
When you press both
WASH/RINSE button and
DELAY STRAT button
simultaneously,
is the water level < 246?
WASH/RINSE button and
DELAY STRAT button
simultaneously,
is the water level < 246?
Is filter inlet valve clogged
with foreign material?
with foreign material?
Check the connectors at the
main PCB and the water
valve. Are the connectors
loose or disconnected?
main PCB and the water
valve. Are the connectors
loose or disconnected?
Proceed to next step at right.
Is the resistance of fill valve
coil between 800 and
1200 Ω?
coil between 800 and
1200 Ω?
(Refer to 9-5 inlet valve
assembly.)
assembly.)
Clean or
replace the filter.
replace the filter.
Check the AIR
CHAMBER
and the tube
(clogged).
CHAMBER
and the tube
(clogged).
Yes
No
No
Yes
Yes
Reconnect or
repair
the connector.
repair
the connector.
Replace the
INLET VALVE
ASSEMBLY.
INLET VALVE
ASSEMBLY.
Yes
Yes
No
No
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27
HEATING ERROR
Is displayed?
Check the connectors at the
main PCB, the heater and the
thermistor. Are the
connectors loose or
disconnected?
main PCB, the heater and the
thermistor. Are the
connectors loose or
disconnected?
Reconnect or
repair
the connector.
repair
the connector.
Yes
Yes
Check the resistance of the
heater. Is the resistance
between 121 and 181 ?
heater. Is the resistance
between 121 and 181 ?
(Refer to 9-6 Heater
assembly.)
assembly.)
Proceed to next step at right
Replace the
HEATER
ASSEMBLY.
HEATER
ASSEMBLY.
No
Yes
No
Check the thermistor
resistance. Is the resistance
correct according to the
chart?
resistance. Is the resistance
correct according to the
chart?
(Refer to 9-7 thermistor
assembly.)
assembly.)
Replace the
THERMISTOR
ASSEMBLY.
THERMISTOR
ASSEMBLY.
Yes
No
Are the thermistor terminals
dry and free of corrosion?
dry and free of corrosion?
[Note]
The temperature sensing circuits on the main
PCB are very simple, consisting only of resistors
and capacitors. Problems with wiring or
connections in the thermistor circuit are the
most likely cause for this error. Be sure to
check ALL connections and wiring thoroughly.
The main PCB should only be replaces as a last
resort, as it is unlikely to be the cause.
The temperature sensing circuits on the main
PCB are very simple, consisting only of resistors
and capacitors. Problems with wiring or
connections in the thermistor circuit are the
most likely cause for this error. Be sure to
check ALL connections and wiring thoroughly.
The main PCB should only be replaces as a last
resort, as it is unlikely to be the cause.
Replace the
THERMISTOR
ASSEMBLY.
THERMISTOR
ASSEMBLY.
Yes
Steam generator heater
Wash heater
Is the connector connected to
thermistor disconnected or
disassembled?
thermistor disconnected or
disassembled?
Reconnect or
repair
the connector.
repair
the connector.
Yes
No
Steam generator thermistor
Wash thermistor
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