Bush Overheating Motor or Floorhead

Cordless vacuum smells of burning plastic or hot electrics during or after 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

Brush bar jam causing belt slip, Overloaded main motor, Dust buildup on motor, Failing motor windings

How to Fix / Troubleshooting

Safety first: Switch off the vacuum immediately, remove the battery, and allow the unit to cool completely before further inspection.

  • Check brush bar and belt: Remove the floorhead and inspect the brush bar for jams. If the belt-driven brush bar is stiff or seized, the belt may have overheated and melted. Replace the belt and free the brush bar.
  • Inspect for melted plastic: Look inside the floorhead and around the motor vents for signs of melted plastic or scorch marks. Replace any visibly damaged components.
  • Clean filters and airflow path: Ensure all filters are clean and the airflow path is unobstructed to prevent motor overheating.
  • Smell test: After cooling, smell near the main motor vents. A persistent burnt electrical smell often indicates motor winding damage. In this case, replace the main motor assembly.
  • Do not continue using: If the burning smell returns quickly after a short test run, stop using the vacuum and replace the faulty component to avoid further damage or fire risk.
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Repair Difficulty

Medium 3/5

Required Part

Main Motor Assembly
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