Why does the Xiaomi Vacuum Cleaner P30's brush bar feel difficult to control, slip, and be unable to roll?

When using the Xiaomi Vacuum Cleaner P30 to vacuum, the brush bar feels difficult to control, slips, and cannot roll.
The following are the possible causes and solutions:
  1. The surface material to be cleaned is too smooth. Check if there is hardened dirt residue on the small wheels of the brush bar, which reduces friction, or entangled hair, causing the small wheels to fail to rotate flexibly. Please clean them in time.
  2. The brush bar has sucked in large debris and become jammed, preventing it from adhering to the cleaning surface. Please turn off the device, check for blockages, and clean them promptly.

Does it help?

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