Tristar
Overheating Motor or Brushroll Friction
Vacuum emits a burning smell during use.
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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
Brushroll jammed causing belt slip (if belt-driven), Hair wrapped tightly around brushroll ends, Main motor overheating due to blocked airflow, Electrical short in motor windings
How to Fix / Troubleshooting
Safety first: Immediately turn OFF the vacuum, remove the battery pack, and allow the unit to cool. Do not continue using the vacuum until the cause is identified.
- Inspect brushroll and belt: Remove the brushroll cover. Check for melted plastic, burnt belt smell, or heavy hair buildup. Clean thoroughly and replace the belt or brushroll if damaged.
- Check filters and airflow: Clean or replace clogged filters and remove any blockages in the wand or nozzle.
- Smell source isolation: Run the vacuum briefly (10–15 seconds) with the nozzle removed. If the burning smell comes from the main body, the motor may be failing.
- Discontinue use if smell persists: A persistent electrical burning smell indicates motor or wiring failure. Replace the main motor assembly or have the unit serviced by a professional.
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Repair Difficulty
Hard
4/5
Required Part
Tristar Motorized Floor Nozzle Belt
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