Heatrae Sadia
Electrical Short or Earth Leakage
Heatrae Sadia electric water heater trips the circuit breaker or RCD when heating.
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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
Heating element short to earth, Water ingress into wiring compartment, Damaged cable insulation, Incorrectly rated breaker
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset a tripping breaker. Isolate the circuit and treat as a potential shock hazard.
Steps to diagnose:
- 1. Visual inspection: Check for obvious signs of water ingress, burnt wiring, or damaged cables.
- 2. Dry and seal: If water has entered the wiring compartment, identify and fix the leak, dry the area thoroughly, and replace any damaged gaskets.
- 3. Test element insulation (competent persons): Perform an insulation resistance test on the heating element. Replace if readings are below specification.
- 4. Check breaker rating: Confirm that the breaker and cable size match the heater’s rated current.
- 5. Professional repair: If you are not qualified to perform electrical tests, contact a registered electrician or service engineer.
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Repair Difficulty
Hard
4/5
Required Part
Heating Element / Internal Wiring
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