Imbalance Switch; Description - Electrolux W4400H Service Manual

Imbalance switch (emergency
switch)
Note! Imbalance detection is primarily done in
the motor control.

Description

The imbalance switch is a safety feature which
1
protects the machine from damage during ex-
traction caused by uneven distribution of the
wash load.
The imbalance switch consists of a microswitch
and a switch arm mounted on the outer frame,
plus a sensor mounted on the inner frame.
The sensor is U-shaped and is secured by two
screws.
If the inner frame, and therefore the sensor, mo-
ves beyond a certain limit, the sensor will actua-
te the microswitch via the switch arm. When this
happens the extraction relay is switched out.
The PCU switches over to wash speed and
water filling takes place. After that the PCU
switches to distribution speed, before another
attempt at extraction.
Imbalance switch
1
Sensor
Switch arm
Microswitch
mounting plate
147
Microswitch
6059