J+ Booster
Nuisance RCD Tripping
The RCD or GFCI in the house trips every time the J+ Booster starts charging, even though the charger itself shows no error.
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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
Combined leakage from the charger and other appliances exceeding the RCD threshold, Slightly elevated earth leakage in the J+ Booster output cable, Shared neutral wiring issues in the house circuit, Incompatibility between the J+ Booster internal RCD and the upstream RCD type.
How to Fix / Troubleshooting
Safety: Do not bypass or replace RCDs with higher ratings without professional advice.
- Dedicated circuit: Whenever possible, connect the J+ Booster to a dedicated circuit with its own RCD.
- Reduce other loads: Turn off or unplug other appliances on the same RCD-protected circuit and test again.
- Inspect cable and connector: Look for moisture or damage that could increase leakage.
- Consult an electrician: Have the house wiring and RCD type checked for compatibility with EV chargers (e.g., Type A vs. Type B RCD requirements).
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Repair Difficulty
Medium
3/5
Required Part
J+ Booster Output Cable Assembly
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