Bissell Brush Roll Imbalance / Debris Accumulation

Cordless vacuum vibrates excessively, especially when using the motorized floor nozzle

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Possible Causes

Uneven hair buildup on brush roll, Bent brush roll shaft, Missing brush bristles, Worn brush bearings

How to Fix / Troubleshooting

Safety first: Turn OFF and remove the battery before touching the brush roll.

  • Clean brush roll: Remove the brush roll and thoroughly clean off all hair, string, and debris from the bristles and end caps.
  • Inspect for damage: Check if the brush roll is straight and that bristles are evenly worn. A warped or heavily worn brush can cause vibration and should be replaced.
  • Check bearings: Spin the brush roll by hand. If it wobbles or feels rough, replace the brush roll assembly.
  • Verify nozzle assembly: Ensure the brush roll seats properly in its mounts and that the nozzle housing is not cracked or warped.
  • Replace components: If vibration persists after cleaning, replace the brush roll and, if necessary, the entire floor nozzle assembly.
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Repair Difficulty

Easy 2/5

Required Part

Brush Roll
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