Haier HW70-1401S-F, Service Manual, Page: 23 / 30

SERVICE MANUAL
HW70-1401
Front Load Washing Machine
Troubleshooting:
Check the motor
Error message. Motor overheat protection or is damaged.
Troubleshooting:
Error message. Water level exceeds protection value.
Troubleshooting:
Y
Cut off power and check if motor wires
are connected well
Reconnect well
Y
Measure if the resistance of motor
binding by multimeter, is it as followed?
5 -10
[1.78±8% Ω (at 20 C)]
;
8 -9[1.90±8% Ω (at 20 C)]
;
;
N
N
N
Y
Y
Put the motor in normal temperature
about ten minutes, and then test
again. If the resistance is natural, it
is caused by overheated protection.
Then check and deal with
overload, abnormal voltage. If not,
please replace motor
Repair wires
Pull out the wire connection of motor
and driving computer board. Then
check if circuit is open by multimeter
Y
Reconnect well
Y
Measure if the resistance of motor
binding by multimeter, is it as followed?
5 -10
[1.78±8% Ω (at 20 C)]
;
8 -9[1.90±8% Ω (at 20 C)]
;
;
N
N
Put the motor in normal temperature
about ten minutes, and then test
again. If the resistance is natural, it
is caused by overheated protection.
Then check and deal with
overload, abnormal voltage. If not,
please replace motor
Y
Repair wires
Pull out the wire connection of motor
and driving computer board. Then
check if circuit is open by multimeter
Check if the pipe connected to the
water level sensor is folded.
Unfold the
pipe connected
to the water level sensor