E13
Kia
Internal Communication Error Between Boards
Kia home charger shows E13 and the display or LEDs may behave erratically; charging does not start.
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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 communication cable between display module and main board, Damaged CAN/serial transceiver on control board, Firmware mismatch between display and main board, Loose low-voltage harness connectors
How to Fix / Troubleshooting
Safety first: Even though this is a low-voltage communication issue, always isolate mains power before opening the charger.
- 1. Power reset: Turn off the charger at the breaker for several minutes, then restore power. Observe if E13 clears.
- 2. Check for moisture: Condensation on the display or inside the housing can affect communication. If moisture is suspected, power off and allow the unit to dry thoroughly.
- 3. Internal harness inspection (technician): With power off and cover removed, a technician should inspect the ribbon cable or harness between the display board and main control board, ensuring it is fully seated and not pinched or damaged.
- 4. Firmware alignment: If the charger supports firmware updates, ensure both the main board and display firmware are updated to compatible versions as specified by Kia.
- 5. Replace faulty module: If communication errors persist, either the display module or main control board may need replacement, starting with the less expensive display module.
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Repair Difficulty
Hard
4/5
Required Part
Display Module Harness
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