Kessel Aqualift F Guide D'installation Et De Maintenance page 69

8. Malfunctions and troubleshooting
Sensor fault
Duo Pump 1/2
Rotary field / phase fault - Rotary field fault:
Duo Pump 1/2
Relay switching cycles
Duo Pump 1
Duo Pump 1
Alarm level exceeded
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- Drop in pressure:
Water level has fallen by 12 mm without the pump having been running
--> Pump the submersible pipe/plunger free by hand
--> Check the air hose for leaks
Wrong rotary field for mains connection of switch unit
--> Swap 2 phases
- Phase fault:
Phase L1 or L2, L3 not available
--> Check connection on the switch unit, mains cable, fuses,
check fault-current circuit breaker
--> If L1 has failed, direction of rotary field cannot be recognised.
--> If L1 has failed, the switch unit goes into battery-operated mode
Power contactor has exceeded 100,000 switching cycles
--> Can be acknowledged, power contactor makes another 1,000 switching cycles
before the message is repeated
--> Replace contactor --> Contact Customer Services
--> The fault "relay switching cycles" is recurring
Alarm level is reached by water level
--> Alarm goes out automatically when the level drops below the alarm level again
--> LED only goes out after manual acknowledgement has taken place
--> Check inlet
--> Check level measurement and switching points
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