E06
Enel X AC Input Overvoltage Protection

Charger displays E06 and refuses to start; app may indicate ‘overvoltage’ or ‘input voltage too high’.

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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

Supply voltage above charger rating, Utility surge or incorrect wiring (e.g., 277 V on 240 V unit), Loose neutral in split-phase systems, Faulty input voltage sensing circuit

How to Fix / Troubleshooting

Safety: Overvoltage can permanently damage the charger. Do not repeatedly reset without checking supply voltage.

  • Step 1 – Confirm supply rating: Check the nameplate on the Enel X charger for its rated input voltage (e.g., 208–240 V). Ensure the circuit matches this rating.
  • Step 2 – Measure voltage (electrician): Have a qualified electrician measure line-to-line and line-to-neutral voltages at the charger input. Values significantly above spec indicate a supply issue.
  • Step 3 – Inspect input wiring: With power OFF, verify that line, neutral (if used), and ground are correctly landed on the input terminal block and that no wires are swapped.
  • Step 4 – Surge damage check: If E06 appeared after a storm or power event, inspect the control board for burnt components or bulging MOV/surge parts.
  • Step 5 – Resolution: Correct any wiring or supply issues first. If supply is normal but E06 persists, the input voltage sensing circuit on the main control board may be damaged and require replacement.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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