LG WM3360H CA Series Service Manual page 26

DRAIN ERROR
Is displayed?
Yes
Is the connector connected
to pump motor assembly
disconnected or
disassembled?
Circulation pump
Drain pump
Connection connector
No
When you press both
WASH/RINSE button and
DELAY WASH button
simultaneously, is the
water level frequency
below 25.0 kHz?
No
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Reconnect or
Yes repair
the connector.
[Note] Environmental check list
1) The drainage hose must not stay in a lower
2) The drainage hose must not be bent or
3) The drainage hose must not get frozen at all
Check the AIR
4) The drainage pump must not have any improper
CHAMBER,
the tube
(clogged),
Yes
and press
switch.
25
Is the coil of the drain
pump too high or low?
(resistance of the coil
is 10-20Ω)
(Refer to 9-4 Pump motor
assembly.)
No
Is the voltage between
connectors out of range?
(NA2 pin1~ BL3 pin1)
- After remove Terminal
Position Assurance (TPA)
of connector, check as follows.
- Pump running : 120V±5%
- Stopped Motor/Pump : 0~1V
Method
1. Press the Power button, while the SPIN SPEED
button and SOIL LEVEL button is pressed
simultaneously.
2. Press Start/Pause button.
: 1 time Pump slow-speed running
: 2 times Pump mid-speed running
: 3 times Pump high-speed running
: 4 times Stop the Motor/Pump
position.
clogged in any way due to the surrounding
physical configuration.
times.
substance or material inside that may cause
a machine breakdown.
Replace the
DRAIN PUMP
Yes
ASSEMBLY.
Replace the
MAIN PWB
Yes
ASSEMBLY.