Bosch Foreign Object in Brush Housing

Robot vacuum makes a rattling or clicking noise from the brush area but continues to run.

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Possible Causes

Small hard objects (stones, beads) in brush cavity, Loose brush guard, Damaged brush fins

How to Fix / Troubleshooting

Safety first: Turn the robot OFF and flip it over.

  • 1. Remove main brush: Take out the brush and inspect the cavity for small objects.
  • 2. Tighten brush guard: Ensure the brush guard is not cracked and that all clips or screws are secure.
  • 3. Inspect brush: Look for broken plastic fins or loose parts on the brush. Replace if damaged.
  • 4. Test noise: Run the robot briefly with the brush removed. If the noise disappears, the brush or housing was the source.
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Repair Difficulty

Easy 2/5

Required Part

Main Brush
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