How to do if Mi Robot Vacuum noise suddenly grew louder when cleaning?

Check follow the steps:

1. Whether there are foreign bodies at the bottom of the host.

2. Take off the main brush and check whether there are foreign bodies in the inner wall of the main brush module or the suction hose inlet.

3. Check whether the main wheel is entangled by foreign bodies.

4. Check whether the brush has foreign body winding.

5. Check whether there is foreign body winding on the universal wheel.

6. Check whether dust and other particles enter the universal wheel. If there is, remove the universal wheel and clean it up.

7. Check whether the black anti-wear rubber pad of the main brush cover is adhered to foreign bodies.

8. Whether there are foreign bodies stuck on the scraper of the main brush cover.

9. Lighter particles inhaled in the dust box may also cause noise when blown by the air flow, which can be solved by dumping and cleaning the dust box.