Onga
Motor Bearing Failure
Pump is very noisy, with a high-pitched whine or grinding sound from the motor end.
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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
Worn front or rear bearings, water ingress past shaft seal, prolonged overload operation
How to Fix / Troubleshooting
Safety: Turn off power and do not continue to run a pump with loud bearings; it can seize and trip breakers.
- Confirm noise source: Use a mechanic's stethoscope or a long screwdriver to listen at the motor body versus the wet end. Loud noise at the motor indicates bearings.
- Check for leaks: Inspect for shaft seal leaks that may have allowed water into the motor.
- Plan repair: Bearing replacement requires motor disassembly, bearing pullers, and a press. If you lack tools, replace the complete Onga motor or pump assembly.
Operating with failed bearings risks rotor damage; schedule repair or replacement promptly.
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Repair Difficulty
Hard
4/5
Required Part
Onga motor bearing set
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