Ultenic Excessive Noise from Fan or Brush System

Robot vacuum is excessively loud during operation compared to when it was new.

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.

Possible Causes

Worn main brush bearings, Debris in the fan housing, Loose screws on the bottom plate, Damaged side brush

Safety first: Turn OFF the robot and flip it over.

Inspect main brush: Remove the main brush and check its end bearings for wear or grinding. Clean thoroughly and replace the brush if the ends are worn.
Tighten screws: Check all visible screws on the bottom plate and brush guard, and gently tighten them.
Check side brush: Remove the side brush and run the robot briefly. If the noise decreases, replace the side brush.
Fan noise: If the noise originates from inside the body and changes with the suction level, the suction fan motor may have debris or bearing wear. Continued loud grinding indicates that the fan module should be replaced.

Medium 3/5

Main Brush Assembly

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