Ultenic
Excessive Noise from Fan or Brush System
Robot vacuum is very loud during operation compared to when it was new.
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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 housing, Loose screws on bottom plate, Damaged side brush
How to Fix / Troubleshooting
Safety first: Turn OFF and flip the robot over.
- Inspect main brush: Remove the brush and check the end bearings for wear or grinding. Clean thoroughly and replace the brush if ends are worn.
- Tighten screws: Check all visible bottom plate and brush guard screws and gently tighten them.
- Check side brush: Remove the side brush and run the robot briefly. If noise decreases, replace the side brush.
- Fan noise: If the noise comes from inside the body and changes with suction level, the suction fan motor may have debris or bearing wear. Continued loud grinding indicates the fan module should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Main Brush Assembly
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