Samsung
Mechanical Noise / Bearing Wear
Robot vacuum is very loud during operation, with grinding or rattling noises.
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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 brush bearings, Debris in fan motor, Damaged drive motor gearbox, Loose internal screws or panels
How to Fix / Troubleshooting
Safety first: Turn off the robot immediately if the noise is sudden or severe to prevent further damage.
- Isolate the source: Run the robot briefly while listening carefully to locate whether the noise comes from the brush area, wheels, or fan.
- Check main brush: Remove the main brush and clean the end caps and bearings. If they feel rough or seized, replace the brush assembly.
- Check side brush: Remove the side brush and test again. If the noise disappears, replace the side brush or its motor.
- If noise persists from inside: The fan motor or drive gearbox may be worn. Internal disassembly and part replacement should be done by a technician.
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Repair Difficulty
Medium
3/5
Required Part
Main Brush Assembly
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