E18
Electrify America
Configuration / Calibration Data Corruption
E18 displayed; charger shows 'Configuration Error' or 'Calibration Data Invalid'.
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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, Flash memory corruption on control board, Incorrect region or current limit configuration, Factory calibration data lost
How to Fix / Troubleshooting
Safety first: Do not attempt to override current limits or safety settings.
- Step 1 – App reconnection: Connect to the charger with the Electrify America app and check configuration settings (circuit rating, region, etc.). Correct any obvious mismatches.
- Step 2 – Factory reset: Perform a factory reset using the local interface or app, following Electrify America instructions. Reconfigure the charger.
- Step 3 – Firmware reinstall: If supported, perform a full firmware reinstall or recovery via the app.
- Step 4 – Power cycle: Turn OFF the breaker for 5 minutes, then ON, and verify if E18 clears.
- Step 5 – Board replacement: If configuration cannot be restored or calibration data is permanently lost, replace the main control board and perform commissioning per Electrify America procedures.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board (Flash Memory)
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