Calpeda Motor Overheating / Insulation Breakdown

Pump emits a burning smell or visible smoke from motor area

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Safety Warning

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.

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Possible Causes

Prolonged overload on Calpeda motor, Blocked motor ventilation, Failed start capacitor causing locked-rotor heating, Internal winding short in Calpeda motor

How to Fix / Troubleshooting

Safety first: Immediately switch off power at the breaker. Do not touch the motor until it has cooled and do not attempt to restart.

  • Inspect for visible damage: After cooling, look for burnt wiring, melted insulation, or discoloration on the motor and terminal box.
  • Check ventilation and load: Ensure the motor cooling fan and vents are clear, and verify that the pump is not overloaded by a blocked system or incorrect impeller.
  • Test windings: Use a multimeter and megohmmeter to check winding resistance and insulation. Abnormal readings indicate internal damage.
  • Replace motor if burnt: If there is a strong burnt smell or visible winding damage, replace the Calpeda motor. Continued use is unsafe.
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Repair Difficulty

Professional Required 5/5

Required Part

Calpeda pool pump motor
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