iRobot
Electrical Overheating / Motor or Brush Motor Failure
Vacuum emits a burning smell 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
Overloaded brush motor, Failing main motor windings, Hair jam in brushroll, Shorted wiring in nozzle
How to Fix / Troubleshooting
Safety first: Immediately turn OFF the vacuum, remove the battery, and unplug the charger. Do not continue using the unit until the cause is found.
- Identify source: Smell near the motorized nozzle and then near the main body to determine where the odor is strongest.
- Inspect brushroll: Remove the brushroll and clear all hair and debris. Check for melted plastic or discoloration around the brush motor area.
- Check for heat: Carefully feel (without touching metal contacts) around the motor vents. Excessive heat indicates internal motor issues.
- Test components separately: Run the handheld unit without the nozzle. If smell persists, the main motor is suspect. If smell only occurs with the nozzle attached, the brush motor or wiring is at fault.
- Replace damaged parts: Replace the motorized nozzle or main motor assembly as indicated. Do not use the vacuum until repairs are completed.
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Repair Difficulty
Hard
4/5
Required Part
Motorized Floor Nozzle or Main Suction Motor Assembly
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