Ferroli Overheating Electrical Component

Smell of burning plastic or electrical smell from the water heater.

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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

Loose electrical connection causing arcing, Failing fan motor, Overloaded PCB component, Water ingress onto wiring

How to Fix / Troubleshooting

Safety: Immediately switch off power at the breaker. Do not continue to operate the heater until inspected.

  • 1. Visual inspection: After cooling, remove the cover and look for discolored or melted connectors, especially on the Ferroli PCB, fan, and pump connections.
  • 2. Check for leaks: Identify any water leaks dripping onto electrical parts and repair the leak first.
  • 3. Tighten terminals: A technician should tighten any loose terminals and replace burnt connectors or wiring.
  • 4. Replace failing components: Replace any motor or PCB that shows signs of overheating.
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Repair Difficulty

Hard 4/5

Required Part

Electrical Wiring Harness
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