E14
EVgo Firmware Integrity / Configuration Error

Charger shows E14 and refuses to charge; may occur after firmware update attempt

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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

Interrupted firmware update, Corrupted configuration file, Incompatible firmware version loaded, Faulty flash memory on control board

How to Fix / Troubleshooting

Safety first: No high‑voltage work is required for firmware issues, but do not repeatedly power‑cycle during an update.

  • Wait and observe: If E14 appears immediately after an update, wait 10–15 minutes to ensure the update process has fully completed.
  • Power-cycle: Turn OFF the breaker for 2 minutes, then ON. See if the charger boots normally.
  • Use EVgo app or service tool: If available, attempt a firmware recovery or re‑apply the latest approved firmware following EVgo’s instructions.

If E14 persists, the main control board’s firmware storage may be corrupted. An EVgo‑authorized technician may need to reflash or replace the control board.

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Repair Difficulty

Hard 4/5

Required Part

EVgo Main Control Board
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