Charger shows E09 and will not start; app may show ‘relay weld’ or ‘contactor fault’.

Safety: A welded contactor can leave the output live even when the charger appears off. Turn OFF the upstream breaker before opening the unit.

• Step 1 – Power cycle: Turn OFF the breaker for 2–3 minutes, then turn it back ON and check if E09 clears. If not, proceed.
• Step 2 – Listen for contactor: When starting a charge, you should hear a distinct click from the internal contactor. No click or continuous hum suggests a fault.
• Step 3 – Visual inspection: With power OFF and cover removed, locate the main contactor. Look for burn marks, melted plastic, or discoloration.
• Step 4 – Mechanical test (advanced): With power OFF, gently press the contactor armature (if accessible) to see if it moves freely. A stuck mechanism indicates replacement is needed.
• Step 5 – Replace contactor: Label and disconnect the wires, remove the faulty contactor, and install an identical Enel X-specified main contactor. Ensure all connections are tight.
• Step 6 – Board check: If a new contactor does not resolve E09, the relay driver circuit on the main control board may be defective and require replacement.