Ultenic Weak Side Brush Motor

Robot vacuum's side brush spins intermittently or stops under light load.

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 side brush motor, High friction from debris, Loose side brush screw, Motor driver issue on PCB

Safety first: Turn OFF the robot.

Clean and tighten: Remove the side brush, clean the hub and shaft, then reinstall and tighten the screw.
Test resistance: Spin the side brush by hand; it should rotate freely.
Observe under load: Run the robot and lightly touch the side brush. If it stops easily, the motor is weak.
Replace motor: Install a new side brush motor module if the problem persists.

Medium 3/5

Side Brush Motor

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