E14
Hyundai
DC Leakage Detection Fault
E14 appears and the charger stops; vehicle may show a charging interrupted message.
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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
DC leakage current detected by internal DC sensor, Faulty DC leakage sensor on power board, Vehicle onboard charger injecting DC into earth, Wiring error causing DC offset
How to Fix / Troubleshooting
Safety first: Do not continue charging until the cause of DC leakage is identified. Turn off the charger at the breaker.
- Try another vehicle: If possible, connect a different EV to see if E14 recurs. If only one vehicle triggers E14, the issue may be in that vehicle’s onboard charger.
- Inspect wiring: Have a qualified electrician verify that neutral and earth are not bonded downstream of the main panel and that the charger is wired per Hyundai’s diagram.
- Reset charger: After inspection, restore power and attempt a new session.
- If E14 persists with multiple vehicles and correct wiring: The DC leakage sensor or associated circuitry on the power board is likely faulty and must be replaced by a technician.
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Repair Difficulty
Hard
4/5
Required Part
DC Leakage Sensor / Power Board
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