Shark
Mechanical Noise from Brush or Motor Bearings
Robot vacuum is very loud or makes grinding noises during operation
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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
Main brush bearings worn or dry, Hair wrapped around brush ends, Suction motor bearings failing, Debris in fan housing
How to Fix / Troubleshooting
Safety: Turn OFF and flip the robot over.
- Inspect main brush: Remove the brush and clean hair from both ends and the cavity. Spin the brush by hand; if it feels rough or noisy, replace it.
- Check side brushes: Remove side brushes and run the robot briefly without them to see if noise changes.
- Listen to suction motor: With brushes removed, run the robot and listen. A high-pitched whine or grinding from the body indicates motor bearing wear.
If noise clearly comes from inside the body and persists after cleaning, the suction motor assembly should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Suction Motor Assembly
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