Read LG 387422 Service Manual online
25
7-7. TROUBLESHOOTING WITH ERROR CODES
IE (Water Inlet Error)
Reconnect or repair the
Connector
.
Or replace the
Harness
.
Is the
Connector
connected correctly to the
Main PCB
and the
Inlet Valve
? Is the
Harness
right?
NO
Is the water tap closed?
[Note] Environmental safety check list
1. No water tap leakage or freeze 4. No entanglement of water supply hose.
2. No water shortage. 5. No water supply hose leakage
3. The inlet filter is not cloggeed.
Check the
Water tap
and open it fully.
When there is water in the tub,
is the water level frequency
over 25.5kHz?
is the water level frequency
over 25.5kHz?
Are the inlet valve filters
clogged?
clogged?
Check the
Air Chamber
and
the Tube
(clogged)
Check the water level frequency again,
if it is over 25.5kHz, replace
if it is over 25.5kHz, replace
the Pressure switch.
YES
YES
YES
NO
NO
NO
There are filters on the unit’s inlet valves to filter mineral
deposits or other debris from entering the unit.
If it is clogged, water will not flow through these filters. Remove
hoses from unit, remove the filters and clean thoroughly.
deposits or other debris from entering the unit.
If it is clogged, water will not flow through these filters. Remove
hoses from unit, remove the filters and clean thoroughly.
1
2
3
4
5
Replace the
Inlet Valve
.
NO
Replace the
Main PCB
.
NO
YES
YES
Is the resistance of each lnlet valve within 3.5 ~4.5 kΩ ?
When the washing machine is started, is the inlet valve
operating?
operating?
Pre Valve
Steam Valve (Option)
Main Valve
1
2
1
2
3
3
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