Garo Nuisance Tripping / High Inrush or Leakage

Charger trips the upstream RCD or breaker as soon as charging starts.

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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

Incorrect type of upstream RCD (not Type A or B as required), Cumulative leakage from multiple devices on same RCD, Faulty internal RCD/RDC‑DD, Short or earth fault in output wiring

How to Fix / Troubleshooting

Safety first: Repeated tripping indicates a potential safety issue. Do not bypass protective devices.

  • Check RCD type: Confirm that the upstream RCD is of the type recommended by Garo (typically Type A or B, depending on model).
  • Dedicated circuit: Ensure the charger is on its own dedicated circuit, not shared with other high‑leakage devices.
  • Inspect wiring: With power OFF, inspect the output cable and internal wiring for damage or signs of arcing.
  • Test with insulation tester: A qualified electrician should perform insulation resistance tests on the circuit and charger.
  • Replace faulty components: If the charger is confirmed as the source of leakage, the internal RCD/RDC‑DD or main board may need replacement.
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Repair Difficulty

Hard 4/5

Required Part

Internal RCD / RDC‑DD Module
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