iRobot Overheating Motor or Electrical Component

Robot vacuum emits a burning smell or very hot air during operation.

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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

Brush motor overloaded by debris, Vacuum motor obstructed, Blocked air vents, Failing motor windings

How to Fix / Troubleshooting

Safety first: Immediately stop the robot, turn it off, and remove it from the charger. Do not continue to operate a device that smells like burning.

Steps to resolve:

  • Inspect for obstructions: Remove and clean main brushes, side brush, and dust bin. Check suction inlet for blockages.
  • Allow to cool: Let the robot sit powered off for at least 30–60 minutes to cool down.
  • Test briefly: After cleaning and cooling, run the robot for a short period while monitoring for smell or excessive heat.

When to replace parts: If the burning smell returns or the robot overheats quickly, the affected motor (brush or vacuum) or main board may be failing and should be replaced. Do not continue using the robot until repaired.

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Repair Difficulty

Hard 4/5

Required Part

Main Brush Motor Module / Vacuum Motor Assembly
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