Zodiac
Overheating Windings or Electrical Insulation
Pump runs but there is a strong burning smell near the motor.
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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
Motor overload, Failing bearings causing drag, Loose electrical connections arcing, Internal winding failure
How to Fix / Troubleshooting
Safety: Immediately turn off power if you smell burning. Do not continue to run the pump.
- Inspect wiring compartment: With power off, open the motor wiring cover and look for burnt insulation or loose, discolored terminals.
- Check motor rotation: Try turning the shaft or fan by hand; stiffness indicates bearing issues.
- Assess load: Ensure the pump is not dead-headed (discharge valve closed) and that the filter is clean.
- Do not reuse if burnt: If you see or smell burnt windings, the motor must be replaced.
Operating a motor with burnt insulation is a fire risk; have it replaced promptly.
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Repair Difficulty
Professional Required
5/5
Required Part
Pump Motor Assembly
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