Kärcher Brush Drive Failure

Brush roller does not spin, but suction is normal and no error code is shown

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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

Broken drive belt or gear in nozzle, Failed brush motor, Disconnected wiring to nozzle, Worn brush motor carbon brushes (if applicable)

How to Fix / Troubleshooting

Safety first: Remove the battery and disconnect the nozzle.

  • Check for jams: Remove the brush roller and clear all debris. Try spinning the roller by hand; it should move freely.
  • Inspect drive components: If accessible, open the nozzle base to inspect the belt or gear drive. Replace any broken or stretched belts with Kärcher parts.
  • Test motor: Reassemble without the roller and briefly power the vacuum. If the motor shaft does not turn, the brush motor or wiring is faulty.
  • Replace nozzle: If the motor has failed or wiring is damaged inside the sealed nozzle, replace the entire powered floor nozzle.
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Repair Difficulty

Medium 3/5

Required Part

Powered Floor Nozzle with Brush Motor
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