E28
Enel X
Configuration / Parameter Corruption
Charger displays E28 and refuses to start; app may show ‘configuration error’ or ‘parameter set 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
Corrupted configuration memory, Incomplete firmware update, Invalid current or voltage settings, EEPROM failure on control board
How to Fix / Troubleshooting
Safety: Incorrect configuration can cause unsafe operation; do not override limits without understanding circuit ratings.
- Step 1 – Verify settings: In the Enel X app, check that maximum current, supply type, and protection settings match the installation.
- Step 2 – Factory reset: Perform a factory reset from the app or front panel, then re‑enter all configuration parameters carefully.
- Step 3 – Firmware reflash: If available, reinstall the latest firmware to restore default parameter structures.
- Resolution: If E28 persists after reset and reconfiguration, the configuration memory (EEPROM) on the main control board may be defective and the board should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board
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