Black+Decker Motor Overheating / Electrical Insulation Breakdown

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

Brush roll jam causing motor strain, Severely clogged filters, Failing motor windings, Foreign object contacting motor fan

How to Fix / Troubleshooting

Safety first: Turn OFF the vacuum immediately, remove the battery, and allow the unit to cool. Do not continue to operate with a burning smell.

  • Check for jams: Inspect and clear the brush roll and floor head of any obstructions.
  • Clean filters and bin: Ensure all filters are clean and the bin is empty.
  • Inspect motor vents: Look for heavy dust buildup around the motor vents and clean with a soft brush.
  • Test briefly: After cleaning and cooling, reinstall the battery and run the vacuum for a few seconds. If the burning smell returns or the motor sounds abnormal, stop use.
  • Replace motor: A persistent burning smell indicates motor failure. Have the motor assembly replaced by a qualified technician.
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Repair Difficulty

Hard 4/5

Required Part

Motor Assembly
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