Black+Decker Thermal or Overcurrent Cut-Out Without Display Indication

Vacuum runs only for a few seconds then shuts off, but no error code is displayed

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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, Weak battery unable to sustain load, Overheating motor, Failing protection sensor

How to Fix / Troubleshooting

Safety first: Remove the battery and allow the unit to cool.

  • Clean airflow system: Empty the bin, clean all filters, and check for clogs in the wand and nozzle.
  • Test with another battery: If available, try a second fully charged battery to rule out battery weakness.
  • Run on low power: Test the vacuum on the lowest speed. If it runs longer on low but still cuts out, the motor may be overheating.
  • Service if unresolved: Persistent short run time without codes suggests a failing motor or sensor that should be diagnosed by a technician.
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Repair Difficulty

Medium 3/5

Required Part

Motor Assembly / Thermal Sensor
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