LG WT7800C Series Service Manual page 35

DRAIN ERROR
Is OE displayed?
Yes
Is the connector connected to
pump motor assembly
disconnected or
disassembled?
Drain pump
Connection connector
No
When you enter the SVC
Mode, is the water level
frequency below 26.0 kHz?
Reconnect or
Yes
repair the
connector
Check the AIR
CHAMBER, the
Yes
tube (clogged),
and press
switch
No
Is the coil of the drain pump
too high or low? (resistance of
the coil is 1.5 – 4Ω)
Yes
Replace the
MAIN PCB
ASSEMBLY.
[Note] Environmental check list
1) The drainage hose must not stay in a lower position
2) The drainage hose must not be bent or clogged in any
way due to the surrounding physical configuration
3) The drainage hose must not get frozen at all times.
4) The drainage pump must not have any improper
substance or material inside that may cause a
machine breakdown.
35
Replace the
Yes
DRAIN PUMP
ASSEMBLY.
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