Xiaomi
Brushroll Imbalance / Gearbox Wear
Motorized floor brush is very noisy, rattles, or vibrates strongly
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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
Warped brushroll, Worn brushroll bearings, Damaged internal gears, Debris lodged in gear train
How to Fix / Troubleshooting
Safety first: Turn off and remove the battery before working on the brush head.
- Remove brushroll: Open the brush head cover and take out the brushroll.
- Inspect for warping: Roll the brushroll on a flat surface. If it wobbles significantly, replace it.
- Check end caps: Spin the end caps by hand. If they feel rough or loose, replace the brushroll assembly.
- Inspect gearbox: If accessible, open the side cover over the drive belt/gears. Remove any debris and check for broken teeth. If gears are worn or cracked, replace the entire brush head.
- Reassemble and test: After cleaning and replacing parts as needed, reassemble and test for smooth operation.
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Repair Difficulty
Medium
3/5
Required Part
Motorized Floor Brush Head
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