E27
Enel X Backend / OCPP Communication Failure

Charger shows E27 and will not charge; app may indicate ‘OCPP server error’ or ‘backend communication fault’ on networked units.

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Possible Causes

Lost internet connection, Misconfigured OCPP server URL, Faulty Ethernet/Wi‑Fi module, TLS certificate or authentication issue

How to Fix / Troubleshooting

Safety: Network issues do not affect electrical safety, but some installations require backend connectivity to authorize charging.

  • Step 1 – Check local network: Verify that your router and internet connection are working. Test with another device on the same network.
  • Step 2 – Wi‑Fi/Ethernet status: In the Enel X app, check the charger’s network status. Re‑enter Wi‑Fi credentials or check Ethernet cabling as needed.
  • Step 3 – OCPP settings: For managed installations, confirm the OCPP server URL, port, and credentials with your service provider.
  • Step 4 – Reboot and retry: Power cycle the charger and router, then check if E27 clears.
  • Resolution: If local network is fine but E27 persists, the communication module may be faulty or the backend server may be down; contact Enel X or your operator.
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Repair Difficulty

Easy 2/5

Required Part

Wi‑Fi / Communication Module
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