9. TROUBLESHOOTING
30
9.3 TROUBLESHOOTING
WITH ERROR
WATER INLET ERROR
Is displayed?
Yes
Is filter inlet valve clogged
with foreign material?
Clean or
replace the
filter.
Yes
No
Is the connector connected
to inlet valve disconnected
or disassembled?
Yes
No
Reconnect
or repair the
connector.
Is resistance between each
terminal of inlet valve 3.79-
3.85 kΩ?(Refer to 10-5
inlet valve)
Replace the
inlet valve
No
Yes
Is the voltage of the inlet
valve connector 220-240
V?( while the power is on)
Replace the
inlet valve
Yes
No
Replace the PCB
Is the connector connected
to PCB disconnected or dis-
assembled?
Reconnect
or repair the
connector.
Yes
No
Is Electrical connection
correct? (Refer to 10-5)
Replace the
Yes
No
Is the water level frequency
below 24.6 kHz? (Refer to 8-
2)
Replace the
FWL sensor
Yes
No
[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 a
possible misuse of hot and cold water
6) No water supply hose leakage