Charger displays E09 and will not start; often appears immediately after plugging into the vehicle.

Safety: This error often indicates an incompatibility or wiring issue. Turn OFF the charger before internal inspection.

• 1. Test with another vehicle:
  • If another EV charges normally, the issue is likely with the original vehicle’s inlet diode and not the AMPROAD charger.
• 2. Inspect the J1772 handle:
  • Check for physical damage to the handle and pilot pin.
  • If the handle has been dropped or run over, replace the cable & handle assembly.
• 3. Internal pilot circuit check (advanced):
  • With power OFF, open the charger and inspect the pilot driver and sensing components on the control board.
  • Look for burnt resistors or damaged components in the pilot circuit.
• 4. Replace control board if needed:
  • If the pilot circuit is damaged and the cable is good, replace the AMPROAD main control board.
• 5. Coordinate with vehicle service: If E09 only occurs with one vehicle, advise the owner to have the vehicle’s charge inlet inspected by the dealer.