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• The pump wheel inside the clear water pump is blocked by dirt. Disconnect the clear water pump from the mains
voltage, remove the hose and flush the inside of the clear water pump with water.
• The float switch has not been placed correctly.
• The overtemperature protection triggered. Disconnect the clear water pump from the mains voltage and let the
clear water pump cool off (at least 30 minutes). Remove the cause for triggering (e.g. water temperature too high,
running dry too long, etc.).
Conveyed volume reduces or is too low
• Check the intake openings for contamination.
• The clear water pump sucks in air because the intake openings are no longer completely submersed.
• Check the attachment of the hose to the clear water pump.
• Check the hose for leaks or bends.
• The displacement reduces due to the principle the larger the conveyor height.
• The hose diameter is too low.
Float switch does not trigger or does not switch off
• The float switch has not been placed correctly.
• C onnect cable to the float switch to the side at the cable holder so that the float switch switches off correctly when
a low water level is reached, e.g. in a cistern.
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