iRobot
Main Motor Bearing Wear / Foreign Object in Fan
Vacuum produces a loud grinding or rattling noise from the main body.
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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
Worn motor bearings, Debris in motor fan, Loose motor mounting screws, Cracked fan impeller
How to Fix / Troubleshooting
Safety first: Turn OFF the vacuum, remove the battery, and disconnect from charger. Do not continue to run a grinding motor.
- Check for external obstructions: Remove the dust bin and inspect the motor intake area for foreign objects that may have been sucked into the fan path.
- Listen to isolated motor: With the bin removed (if allowed), briefly power on the vacuum. If the grinding persists, it is likely internal to the motor.
- Inspect housing screws: Check accessible screws around the motor housing for looseness and gently tighten if needed.
- Replace motor assembly: If noise continues, the motor bearings or fan are likely damaged. Replace the complete main suction motor assembly rather than attempting to rebuild it.
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Repair Difficulty
Hard
4/5
Required Part
Main Suction Motor Assembly
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