Hurlcon Thermal Overload Cycling

Pump runs but overheats and shuts down after 10–30 minutes, then restarts when cooled.

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 on Hurlcon motor, High ambient temperature, Overloaded pump due to high system head, Failing motor windings

Safety: Motor surfaces can be very hot; allow cooling before touching.

Clean cooling fins: Remove dust and debris from the motor body and fan cover.
Improve ventilation: Ensure adequate airflow around the pump; avoid enclosing it in a sealed box.
Reduce load: Clean the filter and ensure valves are fully open to reduce backpressure.

If overheating continues, the Hurlcon motor may be undersized or failing internally and should be evaluated by a technician.

Medium 3/5

Hurlcon pump motor

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