Electrolux W4400H, Service Manual

Page: 56 / 186

56
Troubleshooting
31
31
9
7
402 A
1
3
9
7
2
MOTOR OVER HEAT
The motor controller indicates the thermal pro-
tector of the motor has triggered.
If the power is on, be very careful when
working on the machine.
First verify that:
• the machine is not overloaded
• the motor fan is working
• the external temperature is very high
• the motor is not abnormally warm (more than
10°C)
Switch off the machine for at least 0 seconds to
ensure the motor controller has been completely
reset. Then try to start the machine again. If the
error returns, troubleshoot as follows:
1. Switch off the machine and verify that the drum and
motor operate smoothly.
Drum/motor OK Heavy operation of the drum/motor
Defective bearings in drum
or motor, or there is an
object between the outer
and inner drum. Inspect
and remedy.
2. Wait for at least 10 minutes to allow the motor to
cool down. Then switch on the machine again. Enter
the service programme and run the motor at low
washing revolutions. Verify whether the error indication
immediately returns.
No error indication Immediate error indication
3. Switch off the machine. Undo the contactor
at X3 on the motor. Use an ohmmeter to
measure the resistance in the between the
contactor and the motor between X3:7 - 9.
Contact Interruption
Thermal protector of
motor interrupted.
Replace the motor.
Continued on next page
Contactor X, female towards motor
Measure the resistance between pins 7 and 9