AEG Excessive Operating Noise

Robot vacuum is very loud during operation compared to when it was new.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Debris in main brush bearings, Worn drive wheel gearbox, Suction fan bearings worn, Loose internal screws or panels

How to Fix / Troubleshooting

Safety: Turn OFF and flip the robot onto a soft surface.

  • Inspect brushes: Remove main and side brushes. Clean hair and debris from end caps and shafts. Replace brushes if bristles are deformed.
  • Check wheels: Spin each drive wheel by hand. Grinding or clicking indicates gearbox wear.
  • Listen to fan: Run the robot briefly without the main brush installed. If noise persists, it likely comes from the suction fan motor.
  • Tighten screws: Carefully check accessible screws on the bottom cover and brush guard and tighten if loose.
  • If noise remains high: Replacement of the noisy component (fan motor, wheel assembly, or brush motor) is recommended.
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Repair Difficulty

Medium 3/5

Required Part

Suction Fan Motor
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