E22
Enel X
RFID / User Authentication Module Failure
Charger displays E22 and refuses to start; app may show ‘authentication error’ or ‘RFID reader fault’ on access‑controlled units.
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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
Faulty RFID reader, Loose reader cable, Damaged front panel, Misconfigured user access list
How to Fix / Troubleshooting
Safety: Authentication faults are not electrical hazards, but always turn OFF power before opening the enclosure.
- Step 1 – Test multiple cards: Try several authorized RFID cards or fobs to rule out a single bad card.
- Step 2 – App access list: In the Enel X app or portal, verify that the cards are correctly registered and that access control mode is configured as intended.
- Step 3 – Clean reader area: Wipe the RFID reader surface with a dry, soft cloth to remove dirt or stickers that may interfere with reading.
- Step 4 – Internal check: With power OFF, open the unit and ensure the RFID reader cable is firmly connected to the main control board.
- Resolution: Replace the RFID reader module/front panel assembly if it does not respond. If a new reader still shows E22, the main control board may be at fault.
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Repair Difficulty
Medium
3/5
Required Part
RFID Reader Module
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