E012
EVBox Configuration / Parameter Error

Charger displays E012; unit refuses to start charging; often after installation or configuration changes.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Incorrect grid type configuration in EVBox settings, Mismatched maximum current setting vs hardware, Corrupted configuration file in firmware, Incomplete commissioning process

How to Fix / Troubleshooting

Note: Configuration changes should follow the EVBox installation manual. Some settings require installer credentials.

  • Access configuration: Use the EVBox installer app or web interface to connect to the charger (via Wi‑Fi, Bluetooth, or Ethernet depending on model).
  • Verify grid settings: Confirm that the grid type (single‑phase/three‑phase, voltage) matches the actual installation.
  • Check current limits: Ensure the maximum charging current does not exceed the rating of the internal hardware and upstream breaker.
  • Run commissioning wizard: If available, rerun the commissioning or setup wizard to ensure all required parameters are set.
  • Save and reboot: Save changes, then power cycle the charger at the breaker. If E012 persists, perform a configuration reset to factory defaults (if supported) and re‑commission.
  • Persistent E012: May indicate corrupted firmware or NVRAM; contact EVBox support for firmware reflash or main board replacement.
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Repair Difficulty

Medium 3/5

Required Part

EVBox Main Control Board
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