Electrolux W4400H Service Manual page 56

56
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
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
3. Switch off the machine. Undo the contactor
31
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
Continued on next page
Troubleshooting
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.
Immediate error indication
Interruption
Thermal protector of
motor interrupted.
Replace the motor.
31
Measure the resistance between pins 7 and 9
7
9
7
1
3
2
Contactor X, female towards motor
9
402 A