10
GB
13. Faults
Motor fails to start up
Causes
Remedies
No mains voltage
Check voltage
Pump rotor blocked -thermostat switched off
Dismantle and clean pump
No intake
Causes
Remedies
Intake valve not in water
Immerse intake valve in water
Pump chamber without water connection
Fill water into intake
Air in intake line air-tight
Make sure intake line is
Intake valve leaks
Clean intake valve
Strainer (intake valve) blocked
Clean strainer
Max. suction height exceeded
Check suction height
Inadequate delivery rate
Causes
Remedies
Suction height too high
Check suction height
Strainer dirty
Clean strainer
Water level falling rapidly
Immerse intake valve deeper
Pump performance diminishedby contaminants part
Clean pump and replace wearing
Thermostat switches pump off
Causes
Remedies
Motor overloaded - friction
Dismantle and clean pump.
caused by foreign
Prevent intake of foreign
substances too high
substances (filter)
Warning!
The pump must never be allowed to run dry!
