Charger powers on, screen backlight is on but shows “E0” and will not start charging when EV is plugged in.

Safety first: Do not open the charger enclosure. All checks below are external only. If you smell burning, see smoke, or the cable jacket is damaged, stop using the unit and contact a qualified technician.

• Check vehicle settings: Verify your EV is not set to delayed charging or a scheduled charge. Disable any charge timers and try again.
• Reseat the connector: Unplug the J1772 connector from the vehicle, wait 10 seconds, and plug it back in firmly until you hear/feel a solid click.
• Inspect J1772 plug: Look at the metal pins on the MUSTART J1772 handle for dirt, corrosion, or bent pins. Clean gently with a dry, soft brush. Do not use liquids or abrasives.
• Try another EV (if available): If E0 remains and the charger never starts with any vehicle, the control board may not be detecting the pilot signal correctly and will need professional service.