Water heater trips the household circuit breaker or RCD when it starts.
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.
Possible Causes
How to Fix / Troubleshooting
Safety: Do not repeatedly reset a breaker that trips immediately. Risk of fire or shock.
Steps:
- Visual inspection: With power off, inspect inside the heater for signs of water, burnt components, or damaged cables.
- Dry moisture: If there is condensation or minor water ingress, dry thoroughly and fix the source of the leak before re-energizing.
Professional help: Persistent tripping indicates a serious electrical fault. A qualified electrician or Sime technician must test insulation resistance and replace faulty components.
Repair Difficulty
Required Part
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