Kärcher Brush Drive Failure

Brush roller does not spin, but suction and spray work normally.

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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 brush drive belt, Seized brush roller bearings, Failed brush motor, Disconnected brush motor wiring

How to Fix / Troubleshooting

Safety first: Unplug the unit and lay it on its side to access the brush head.

  • Check for obstructions: Remove the brush cover and clear any hair, threads, or debris wrapped around the brush roller.
  • Inspect drive belt: If your Kärcher model uses a belt, check the brush drive belt for breakage or heavy wear. Replace if damaged.
  • Test brush rotation: Spin the brush by hand. If stiff or seized, replace the brush roller and its bearings.
  • Check brush motor: If belt and brush are fine, test the brush motor for power and continuity. Replace the motor if it does not run when supplied correctly.
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Repair Difficulty

Medium 3/5

Required Part

Brush Drive Belt
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