Ariston Electrical Short or Overload

Furnace causes frequent breaker trips or blows fuses.

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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 fan motor, Shorted pump, Damaged wiring harness, Faulty control board

How to Fix / Troubleshooting

Safety: Repeated breaker tripping indicates a serious electrical fault. Do not repeatedly reset without investigation.

  • Visual inspection: With power OFF, inspect wiring inside the furnace for burnt insulation, loose connections, or signs of arcing.
  • Isolate components: A technician can disconnect fan, pump, and other loads one by one to identify the faulty part.
  • Do not upsize breaker: Never replace a breaker with a higher rating to stop nuisance trips.
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Repair Difficulty

Professional Required 5/5

Required Part

Flue Fan Assembly
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