Morphy Richards
Motor Bearing Wear / Air Leak Whistle
Cordless vacuum runs but produces a loud high-pitched whine
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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 main motor bearings, Small air leak at motor housing gasket, Debris contacting motor fan, Cracked motor housing
How to Fix / Troubleshooting
Safety first: Remove the battery before inspecting the unit.
- Check for external air leaks: Ensure all covers and the bin are properly fitted. Sometimes a misaligned cover can whistle.
- Inspect for debris: Look into the air inlet and outlet for foreign objects that may be touching the fan or causing turbulence.
- Compare with and without wand: Run the vacuum briefly without the wand or floorhead. If the whine persists, it is likely from the motor area.
- Motor replacement: Worn bearings or internal fan damage require replacement of the main motor assembly by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Suction Motor Assembly
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