E08
Kia
Output Overcurrent / Overload Protection
Kia EV charger displays E08 and stops charging shortly after starting.
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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
Internal current sensor (CT) fault in Kia charger, Short circuit or partial short in output cable to vehicle, Incorrect maximum current configuration on charger, Faulty main control board misreading current
How to Fix / Troubleshooting
Safety first: Overcurrent can damage wiring and components. Do not attempt to bypass fuses or increase breaker size beyond specifications.
- 1. Check cable for damage: Inspect the entire length of the output cable for cuts, crushed sections, or melted insulation. If any damage is found, stop using the charger and replace the cable assembly.
- 2. Verify settings: If your Kia charger has adjustable current settings (via app or DIP switches), ensure the maximum current is set according to the circuit breaker rating and installation manual.
- 3. Test with another EV: If possible, connect a different Kia or compatible EV. If E08 occurs with multiple vehicles, the fault is likely in the charger.
- 4. Internal CT inspection (technician): With power off and cover removed, a technician can inspect the current transformer (CT) around the output conductors for cracks or loose connections and verify its wiring to the control board.
- 5. Replace CT or control board: If the CT is damaged or the board is misreading current, replace the faulty component with a Kia-approved part.
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Repair Difficulty
Hard
4/5
Required Part
Output Current Sensor (CT)
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