Charger trips the household RCD/GFCI or main breaker as soon as charging starts; no specific charger error code.

Critical safety: Repeated RCD trips indicate potential leakage. Do not bypass or replace with a higher‑rated RCD without proper diagnosis.

• Isolate loads: Turn off other circuits and try charging again to see if combined leakage is the cause.
• Check RCD type: Ensure the upstream RCD is of a type compatible with EV chargers (e.g., Type A with DC detection in the EVBox, or Type B as required by local code).
• Inspect cable and connector: Look for visible damage or moisture that could cause leakage.
• Electrical tests (electrician): Have an electrician perform insulation resistance and leakage current tests on the EVBox circuit.
• Correct wiring or replace components: Fix any shared neutral or wiring issues and replace any damaged cable or EVBox components contributing to leakage.