Hisense WFU7012 Service Manual page 35

9. TROUBLESHOOTING
HEATING ERROR
Is
Yes
Is the connector connected
to heater disconnected or
disassembled?
No
Is Check heater resistance
out of range? (24.2-26.8 Ω)
(Refer to 9-6)
No
Is the voltage of the heater
connector 220-240 V?
( while the power is on)
No
Is Electrical connection
correct? (Refer to 10-6)
Yes
Is the connector connected
to PCB disconnected or dis-
assembled?
No
Replace the PCB
[Note] Environmental safety check list
Chances that the cause occurs from the main
controller are very little.Sensing part of the circuit
(tE) consists of only resistors and capacitors.
displayed?
Reconnect
Yes
or repair the
connector
Replace the
Yes
heater
Replace the
Yes
PCB
Replace the
No
main harness
Reconnect
Yes
or repair the
connector
DOOR LOCK ERROR
Is
Yes
Is the connector connected
to door lock or PCB
disconnected?
No
Does the spring of latch
hook actuate?
Yes
Is the voltage of the heater
connector 220-240 V when
the start/pause button is
pressed to start the cycle?
Yes
Is door lock broken?
[Note] Environmental safety check list
1) The machine must operate with all the doors
completely closed and locked.
2) The washing area must operate with a water
temperature not higher than 50℃ and must not
have more amount of supplied water than it should.
32
displayed?
Reconnect
Yes
or repair the
connector.
Replace Door
No
Assembly
Replace the
No
PCB
Replace the
Yes
door lock