Service
Manual | 26. Level Control |
7 | 9002 | 1 | 26 |
Type | Edition | Page |
Description
Fig. The level switch is a pressure sensor controlling two
1different 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
1
Fig.
compresses and, at two preset pressure levels
2
(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 was being 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.
1198
Control and fault tracing
All level sensors are
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
Fig. Start the machine and select a standard program.
2Check low water level for prewash and main wash according to the illustration. Advance the program using the START button and check 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.
2
High level | Low level |
3 | 4 |
1 | 6 |
2 | 5 |
| 1 |
6
1417
High level (70 and 100 litres)
Break level | 90 |
130 |
Make level
Low level (70 and 100 litres)
| 12 | 0 |
Brake level |
| 180 |
| ||
|
| |
Make level |
|
|
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