Hisense WFU7012 Service Manual page 34

9. TROUBLESHOOTING
DRAIN ERROR
Is
Yes
Is the connector connected
to pump disconnected or
disassembled?
No
Is the water level frequency
below 26.0 kHz?
(Refer to 8-2)
No
Is the coil of the drain pump
too high or low? (resistance
of the coil is 162-191)
(Refer to 10-4)
No
displayed?
Reconnect
Yes
or repair the
connector.
Check the air
chamber,the
Yes
tube, and
press switch
Replace the
Yes
drain pump
Is the voltage between
connectors out of range?
After remove Terminal
Position Assurance (TPA) of
connector, check as follows:
- Pump running : 220-240V±5%
- Stopped Motor/Pump : 0~1V Method
Select"Spin"program run,the pump start work
[Note] Environmental safety 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.
31
Replace the
Yes
PCB