Charger intermittently trips to E05 during or shortly after starting a charge; may coincide with RCD tripping.

Safety first: Repeated RCD or leakage trips indicate a potential shock hazard. Do not repeatedly reset without investigation.

• Try a different vehicle: If possible, test the Rolec charger with another EV. If E05 only occurs with one vehicle, the issue may be with the car’s onboard charger.
• Inspect for moisture: Check the enclosure, cable gland entries, and Type 2 socket for signs of water ingress or condensation. Dry the area thoroughly and improve sealing if gaskets or glands are compromised.
• Check cable and socket: Look for cuts, abrasions, or crushed sections on the tethered cable. Inspect the socket for burn marks or carbon tracking between pins.
• Reset and monitor: After drying and inspection, power‑cycle the charger and attempt a short test charge while monitoring for further trips.
• If E05 persists with multiple vehicles: The internal DC leakage sensor or RCD module in the Rolec unit may be faulty. Replacement of the leakage sensor/RCD assembly is recommended and should be carried out by a qualified technician.