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Pump pressure
When the pump is failing, the reason might be found in one of the following categories:
These 5 fault-categories ha ve 3 different symptoms, A-B-C:
A:
Pres su re lies down to 50 bar un der nor mal le vel, but even and without vibrations or bum ping
movements.
Cause 1:
Mo tor running too slowly
Cause 2:
Leak from pres su re si de
Cause 3:
Water regulation not correctly adjusted or it sticks.
B:
Pres su re lies down to 50 bar un der nor mal le vel, but with clear vibrations in ho se and spray
hand le.
Cause 1:
Dirt or wear has damaged the pres su re or suction valve.
Cause 2:
Water supply in suf fi cient or too hot.
C:
Pres su re falls down to 100 bar un der nor mal le vel or goes up and down in a regular rhythm.
Cause 1:
Safety valve defect or not correctly adjusted.
Cause 2:
The high pres su re nozzle choked or calcifi ed.
Cause 3:
Non-re turn valve in pres su re out let sticks or has been tur ned wrongly.
Cause 4:
Coil in boiler calcifi ed.
Cause 5:
Extension hoses too long or ha ve too many joints.
Besides, see 03-ser vice ma nu al.
D_CON. 03GB.
1. Mo tor is running too slowly.
2. Pump parts are worn.
3. Dirt in valves or nozzle.
4. By-pass valve incorrectly adjusted.
5. Water supply unstable.
Check mo tor
Check wearing parts
Trouble-shooting
First degree
wearing parts
Second degree
wearing parts
D
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