Electrolux W4400H, Service Manual

Page: 55 / 186

55
Troubleshooting
OVER HEAT PM
The motor controller indicates too high a temperature at the heat
sink.
This error code appears if the external temperature has been very
high. It his has been the case, lower the temperature by e.g., ventila-
tion the room.
If the power is on, be very careful when working on the machine.
First verify that:
• the machine is not overloaded
• the machine is not covered
• any fan for the motor controller operates correctly
• the motor controller heat sink is not blocked by dust
• the motor controller display do not indicate and error.
Switch off the machine for at least 0 seconds to ensure the motor con-
troller has been completely reset. Then try to start the machine again. If the
error returns, troubleshoot as follows:
1. 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. Enter the service programme. Run the motor at different washing revolutions,
clockwise and counter-clockwise. Verify that no noise can be heard from the drum/
motor.
Drum/motor OK Noise from drum/motor
Defective bearings in drum or motor, or there is an object
between the outer and inner drum. Inspect and remedy.
The motor controller is probably defective.