Elecro Short Circuit or Earth Leakage on Startup

Heater trips the breaker or RCD immediately 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 Elecro heating element, Water ingress into electrical compartment, Damaged internal wiring touching chassis, Incorrectly wired supply (neutral/earth fault)

How to Fix / Troubleshooting

Safety first: Do not repeatedly reset a tripping breaker. Isolate power and investigate.

  • Visual inspection: Open the heater and look for obvious water ingress, corrosion, or burnt wiring.
  • Dry the unit: If moisture is present, dry thoroughly and identify the source of the leak (glands, seals, pipe joints).
  • Element insulation test: Have a technician perform an insulation resistance test on each element to earth. Replace any element with low insulation resistance.
  • Check wiring routing: Ensure no conductor is pinched under covers or touching sharp metal edges.

If wiring and elements test good, have an electrician verify correct supply wiring and RCD operation.

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Repair Difficulty

Professional Required 5/5

Required Part

Elecro Titanium Heating Element Assembly / Internal Wiring Harness
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