J+ Booster
Nuisance RCD Tripping
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 charger and other appliances exceeding RCD threshold, Slightly elevated earth leakage in J+ Booster output cable, Shared neutral wiring issues in house circuit, Incompatibility between J+ Booster internal RCD and 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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