Lectron EV charger displays E02 and refuses to charge; vehicle may briefly start then stop charging.

Safety first: Do not bypass ground fault protection. Turn OFF the breaker before handling the charger or opening covers.

• 1. Inspect for moisture: Disconnect the J1772 connector. Check inside the handle and around the pins for water, condensation, or debris. If damp, allow the connector to dry completely in a warm, dry area for at least 24 hours. Do not use heat guns or open flames.
• 2. Check outdoor installation: If the Lectron charger is installed outdoors, verify that the weatherproof cover and cable entry glands are intact and tight. Look for water trails or rust on the enclosure. Reseal any compromised cable glands with appropriate gaskets or replace them.
• 3. Test with another vehicle: If possible, connect a different EV. If E02 only occurs with one vehicle, the ground fault may be in that vehicle’s onboard charger or inlet; contact the vehicle manufacturer.
• 4. Verify supply wiring and ground: With power OFF, remove the front cover. Confirm that the ground (equipment grounding conductor) is securely landed on the ground terminal and that hot and neutral (if present) are correctly connected per Lectron wiring diagram. Loose grounds can cause nuisance ground fault trips.
• 5. Reset and retest: After drying and tightening connections, restore power at the breaker and attempt a charge. If E02 reappears immediately with multiple vehicles and in dry conditions, the internal ground fault detection module on the main control board is likely defective.

Next step: If the error persists, the safe remedy is replacement of the Lectron main control board or entire EVSE assembly by a qualified technician. Do not attempt to bypass or defeat the ground fault circuitry.