Service
Manual
Type Edition Page 26. Level Control
72
26
High level (160 litres)
200 245
Low level (160 litres)
150 170
High level (230 litres)
250 295
Low level (230 litres)
220 230
3
Level screw
Hysteresis
screw
1424
1417
Level screw
high level
Machine does not fill with water
• Check the level switch function by:
- connecting a meter between the contact pins
- disconnect the hose from the drain valve
- blow air carefully through the hose and
monitor the meter contact functions.
• Insufficient water filling can also be caused by
burnt contacts in the level switch. If this is the
case, replace the level switch.
Replacing the level switch
• Blow through the hose to clean it before the new
level switch is installed.
• There may not be water in the machine during
installation.
Adjustment of level switch
The machine guarantee ceases to be valid if the
level switch sealant is broken without manufacturer
permission. After adjustments are made, the sensor
should be resealed.
The level sensor has two adjustment screws for
high water level and two for low level. For each
level, the screws have the following functions:
�� level screw
raise (clockwise adjustment) or lower transition
point for both minimum and shut-off level.
Make sure that these screws are not turned too
far counter-clockwise or else the springs under
the screws will loosen and the level sensor will
become nonfunctional.
• hysteresis screw
increase (clockwise adjustment) or decrease the
distancebetween the minimum level and the
shut-off level. The shut-off level is not changed
during this adjustment.
Always adjust the shut-off level first using the level
screw and then adjust the minimum level using the
hysteresis screw.
Hysteresis screw
high level
Hysteresis screw
low level Level screw
low level
Make level
Break
level
Make level
Break level
Break level
Make level
Make level
Break level
Break level
Make level
Fig.
3
9112
2