Charger indicates E14 or an insulation monitoring fault; unit refuses to energize output.

Safety first: Turn OFF power at the breaker. Do not use the charger if you suspect water inside the enclosure.

Steps:

• 1. Inspect for water ingress: Look for condensation on the enclosure window, rust on screws, or water trails. If present, the unit must be dried and the source of ingress corrected (e.g., failed gasket).
• 2. Dry the connector: If the J1772 handle has been exposed to rain or washing, allow it to dry thoroughly before reuse.
• 3. Internal inspection (qualified person): With cover removed and power OFF, inspect internal wiring for damaged insulation, rodent damage, or contamination.
• 4. Megger test: An electrician can perform an insulation resistance test between live conductors and ground (with EVSE disconnected from supply) to locate low-resistance paths.
• 5. If no external cause found: The internal isolation monitoring circuit on the control board may be faulty and require board replacement.