How to Troubleshoot a Vacuum Making Loud Noise: Common Causes and Solutions

Excessive noise during the operation of a robot vacuum cleaner can be quite bothersome for homeowners. After all, one of the main reasons why people invest in these devices is to have a quiet and efficient cleaning solution for their homes. In this blog post, we will explore the causes of a robot vacuum making loud noise and provide some helpful tips on how to reduce it.

Causes of a Vacuum Making Loud Noise and Solutions to Address It

Cause 1: Parts inside the vacuum cleaner are loose or damaged.

Over time, vibrations and movements during operation can cause screws or other components to become loose, leading to a clicking noise. Additionally, if any parts are damaged or worn, they may produce abnormal sounds when they come into contact with other surfaces.

Solution: Regularly check and tighten any loose parts. If you find any damaged components, it’s recommended to replace them immediately to prevent further damage and reduce noise.

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Cause 2: Brushes or filters are clogged.

As your robot vacuum cleaner picks up dirt, dust, and debris from the floor, these particles can accumulate in the brushes or filters over time. This accumulation restricts airflow and causes the motor to strain, leading to increased noise levels.

Solution: Ensure you clean the brushes and filters regularly as per the manufacturer’s instructions. By maintaining clean brushes and filters, you can ensure optimal performance while reducing unnecessary noise.

The main brush tangled with hair is causing the vacuum making loud noise
The main brush tangled with hair is causing the vacuum making loud noise

Cause 3: Unbalanced wheels or brushes can also cause excessive noise.

If a wheel or brush wears unevenly or is misaligned, it can produce vibrations, generating additional sound. This imbalance not only affects the overall performance of the robot vacuum cleaner but also increases wear on its components.

Solution: Carefully inspect the wheels and brushes for any signs of damage or misalignment. Adjusting or replacing these parts as needed will help restore balance and minimize noise during operation.

Unbalanced wheels or brushes can also cause excessive noise.
Unbalanced wheels or brushes can also cause excessive noise.

Cause 4: Motor or fan issues.

If there’s a malfunction in the motor or fan, it can produce a loud and unusual sound. This could be due to worn bearings, loose connections, or other internal issues.

Solution: We recommend contacting the manufacturer’s customer support or a professional technician for assistance. They will be able to diagnose and address any issues related to the motor or fan, restoring your robot vacuum cleaner to its optimal performance.

Conclusion and Recommendations

It’s worth noting that some noise from a robot vacuum cleaner during operation is inevitable. The solutions mentioned above only address unusual noises produced during the machine’s operation. Therefore, if you’re seeking quieter cleaning, consider investing in a high-quality robot vacuum cleaner designed specifically for quiet operation. These models typically employ advanced technology to reduce noise without compromising performance.

Lastly, if the above methods don’t resolve your issue, consult your robot vacuum cleaner’s user manual or contact customer support for further assistance.


techTongBo (also named: Nanjing TongBo / NJTB) is a Chinese company specializing in the manufacture and sales of vacuum cleaner accessories. We offer replacement accessories for the global market that are compatible with mainstream vacuum cleaner brands and have stronger price advantages.

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