Ferroli Electrical Short / Earth Leakage

Water heater trips the household RCD or fuse when it starts.

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.

Possible Causes

Water ingress into electrical components, Shorted fan motor, Shorted pump (if fitted), PCB short to earth

Safety: Do not repeatedly reset the RCD; this indicates a potentially dangerous fault. Leave the heater switched off and unplugged.

1. Inspect for leaks: Look for water around the Ferroli PCB, fan, and wiring. Repair any leaks first.
2. Isolate components (technician): A professional can disconnect fan, pump, and other loads one by one to identify the faulty component.
3. Replace faulty part: Replace any motor or PCB that shows low insulation resistance or visible damage.

Professional Required 5/5

Fan Motor or PCB

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