Onga Overheating Windings / Insulation Breakdown

Pump runs but there is a noticeable electrical burning smell from the motor housing.

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

Prolonged overload, blocked ventilation, failing bearings, incorrect voltage

Safety: Turn off power immediately and do not continue to run the pump.

Inspect motor: Look for discoloration or melted insulation at the terminal box.
Check for mechanical drag: With power off, spin the shaft/fan. Roughness indicates bearing issues.
Ventilation and load: Correct any blocked vents or hydraulic restrictions (dirty filter, closed valves).

A persistent burnt smell usually means winding damage. The safest solution is to replace the Onga motor assembly.

Hard 4/5

Onga motor assembly

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