Pahlen Thermal Overload Cycling

Pahlén pool pump starts but shuts off after a few minutes and then restarts after cooling

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Blocked ventilation, High mechanical load from dirty filter or closed valves, Failing motor windings, Incorrectly sized overload protection

Safety first: Turn off power before inspection. Repeated cycling can damage the motor.

Clean and ventilate: Remove debris from the motor and ensure adequate airflow around the Pahlén pump.
Reduce load: Backwash or clean the filter and open all valves fully.
Check ambient temperature: If installed in a plant room, improve ventilation or cooling.
Professional check: If cycling continues, have a technician test motor current draw and overload settings.

Hard 4/5

Motor Thermal Overload

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