Troubleshooting With Error - LG WM3360H CA Series Service Manual

8-4. TROUBLESHOOTING WITH ERROR

INLET VALVE ERROR
Is displayed?
Yes
When you press both
WASH/RINSE button and
DELAY WASH button
simultaneously,
is the water level frequency
below 24.6 kHz?
No
Is filter inlet valve clogged
with foreign material?
No
Is the connector connected to
inlet valve assembly
disconnected or
disassembled?
No
Is resistance between
each terminal of INLET
VALVE ASSEMBLY
0.8-1.2 kΩ?
(Refer to 9-5 inlet valve
assembly.)
Yes
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Is the voltage of the inlet
valve connector 120 V AC?
(Check the all terminal of
Check the AIR
CHAMBER
Yes
and the tube
(clogged).
Is the connector connected to
MAIN PWB assembly
Clean or
Yes
disconnected or dis-
replace the filter.
assembled?(NA2, NA4, BL3)
Reconnect or
Yes
repair
the connector.
Is Electrical connection
correct?
(Refer to 9-5 wiring diagram)
Replace the
After checking connector,
INLET VALVE
is the water level frequency
No
ASSEMBLY.
below 24.6 kHz?
Replace the MAIN PWB
ASSEMBLY.
[Note] Environmental safety check list
1) No water tap leakage
2) No water tap freeze
3) No entanglement of water supply hose
4) No water shortage
5) No shrinkage on water supply hose due to
6) No water supply hose leakage
24
INLET VALVE ASSEMBLY
while the power is on.)
No
No
Yes
No
a possible misuse of hot and cold water
Replace the
Yes
INLET VALVE
ASSEMBLY.
Reconnect or
Yes
repair
the connector.
Replace the
No MAIN HARNESS.
Check the
Yes
PRESSURE
SWITCH.