Kärcher Electrical Overheating or Motor Failure

Strong burning smell during operation, sometimes accompanied by smoke.

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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

Burning vacuum motor windings, Slipping or burning drive belt, Electrical short on PCB, Overheated brush motor

How to Fix / Troubleshooting

Safety first: Immediately switch off and unplug the unit. Do not continue to operate it if smoke or strong burning smell is present.

  • Inspect brush area: Check the brush roller and drive belt for melting or burning. Replace any damaged components.
  • Check vacuum motor: Open the motor compartment and smell near the vacuum motor. A strong burnt odor and discoloration indicate motor failure; replace the motor assembly.
  • Inspect PCB: Examine the main control PCB for burnt components or tracks. Replace the PCB if damage is visible.
  • Do not reuse until repaired: Operating the unit in this condition is a fire risk. Replace all failed components before using again.
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Repair Difficulty

Hard 4/5

Required Part

Vacuum Motor Assembly
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