Service
Manual Type Page
Edition
1
26
1198
1423
90 130
180
120
1417
2
12
364
5
Low level
High level
1
6
Low level (70 and 100 litres)
Description
The level switch is a pressure sensor controlling two
different drum water levels by sensing air pressure
in a hose connected to the drum’s bottom. When the
water rises in the drum and hose, the air in the hose
compresses and, at two preset pressure levels
(shut-off levels), two different alternating contacts in
the pressure sensor are activated.
When the water drains from the drum, the contacts
switch back to original position, but now at lower
water levels than was required to activate the
contacts when the drum wasbeing filled. These
levels are called minimum levels. If the water level
during washing falls below the minimum level, water
will be added until the shut-off level is again
reached.
Control and fault tracing
All level sensors are factory-set for the various
machines. As a rule, this setting should not be
changed. For that reason, the level controls are
sealed with enamel paint.
A faulty level switch can not be repaired and should
be replaced.
IMPORTANT!
The machine guarantee ceases to be valid if
the level sensor is tampered with.

Water level check

Start the machine and select a standard program.
Check low water level for prewash and main wash
according to the illustration. Advance the program
using the START button andcheck high water level
for rinsing.

Water level is too high

• Check that the hose connecting the level switch
and the drain valve is not obstructed. When
necessary and when the machine is empty of
water, clean the hose by disconnecting it from the
level switch and blowing air through it.
• Check the hose for holes which can be caused
by the hose rubbing against the pulley.
• Overfilling can also be caused by burnt contacts
in the level switch. If this is the case, replace the
level switch.
High level (70 and 100 litres)
Fig.
1
Fig.
2
Fig.
2
Break level
Make level
Make level
Brake level
71
26. Level Control 9002