WFT11D81EP, WF-T1377TP, WF-T1478TP - LG Washing Machine Service Manual (repair manual). Page 42

For more detailed information for trouble shooting refer to page 44 to 53.

ERROR

WATER

SUPPLY &
INLET V/V

DRAINAGE

UNBALANCE

OVER

FLOODING

ERROR

WATER LEVEL
dose nto rise to
the set level in 40
minutes.

Water is not
completely
drained in 10
minutes.

Laundry
unbalance during
spin.

In the second QC
Mode the
following message
is displayed.

Water faucet is closed?
Water supply is interrupted.
Inlet V/V is clogged with
dirts.
Connector has bad contact
to the inlet valve.
Red(RD), White(WH),
Blue(BL), Yellow(YL) 3 pin
connector has bad contact to
the P.W.B ASM.

Is the drain hose located
properly?
Drain hose is not lowered.
Drain hose is folded or
clogged due to freeze or
dirts.
Bad Drain Motor part or
Yellow(YL) 3 pin  connector
to the P.W.B ASM has bad
connection.

Laundry in the INNER TUB
is filled unevenly.
Washer is tilted.
S.F S/W is too closed to the
washing tub, or has bad
contact.
Is the CONNECTOR of Ball
pressure sensor
disconnected or badly
touched?

Check INLET valve

Open water faucet.

Wait until water supply is
resumed.
Clean or replace filter.
Correct the connector
contact.

Same as above.

Hung up drain hose at
0.9~1.3m high.

Unclog the drain hose.

Replace Drain Motor or
correct the connector
contact.

Try to fill laundry uniformly
in the inner tub.

Adjust the leg.
Check and replace S.F S/W.

Check B.P SENSOR
CONNECTOR or replace
B.P sensor

ERROR DECISION

BASIS

CAUSE FOR ERROR

OCCURRENCE

REMEDY