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!
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