Stihl Electrical Short / Overcurrent

Unit trips the household circuit breaker or blows fuses when turned on

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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

Shorted vacuum motor, damaged power cord, water ingress into motor housing, shorted heater element

How to Fix / Troubleshooting

Safety: Do not repeatedly reset breakers. Unplug the unit immediately.

  • Inspect cord and plug: Look for cuts, crushed sections, or burn marks. Replace the cord set if damaged.
  • Check for moisture: If the unit was used on very wet surfaces or stored damp, allow it to dry completely for 24–48 hours in a warm, dry area.
  • Isolate components (technician): A professional can disconnect the heater, motor, and pump one at a time to identify the shorted component.

Because of shock and fire risk, this fault should be handled by a qualified technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Vacuum Turbine Motor
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