Bomann Overheating Components Without Triggering Protection

Vacuum produces a hot or burning plastic smell but no error code appears

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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

Partially blocked airflow causing high temperature, Hair wrapped around brush roll end caps, Worn brush roll bearings heating plastic, Dust buildup on motor cooling vents

How to Fix / Troubleshooting

Safety first: Immediately switch OFF the vacuum and remove the battery pack. Allow the unit to cool before touching hot areas.

  • Step 1 – Inspect brush roll and end caps: Remove the motorized head and brush roll. Clear all hair and fibers from the ends. Check for melted plastic or discoloration.
  • Step 2 – Clean filters and vents: Ensure all filters are clean and correctly installed. Use a soft brush to remove dust from motor cooling vents.
  • Step 3 – Test briefly: After cooling and cleaning, run the vacuum for a short period and monitor for smell. If the odor returns quickly, stop using the unit.

Continued burning smell suggests internal motor or wiring damage. Have the vacuum inspected and repaired by a professional before further use.

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Repair Difficulty

Medium 3/5

Required Part

Brush Roll End Bearings
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