How to Fix / Troubleshooting

Safety first: Power off and flip the robot over before inspection.

Step-by-step:

Isolate noise source: Run the robot briefly while upside down (hold it securely) to determine if noise comes from brushes, wheels, or fan.
Service main brush: Remove the main brush and end caps. Clean hair and debris from bearings and reinstall. If noise disappears with brush removed, replace the brush if worn.
Check wheels: Spin each drive wheel by hand. Grinding or clicking suggests gearbox wear; the wheel module may need replacement.
Tighten screws: Check and gently tighten screws on the brush guard and bottom shell.

If a high-pitched whine or rattle persists from inside the body, the suction fan bearings may be failing and the fan assembly should be replaced.

Robot vacuum is much louder than usual during operation, with grinding or rattling noises.

Possible Causes