E08
Amperfied
Vehicle Detection / State Machine Error
Display shows E08; charger does not recognize that a vehicle is connected.
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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 control pilot (CP) voltage sensing, Damaged CP wire in Type 2 cable, Contaminated or damaged CP pin in socket, Defective main control board input circuitry
How to Fix / Troubleshooting
Safety: De‑energize the charger before touching internal wiring. External cable checks are safe with power off.
- Inspect the CP pin: On the Type 2 connector, locate the small CP pin and check for dirt, corrosion, or mechanical damage. Clean gently with a dry cloth.
- Test with another vehicle: If possible, connect a different EV. If the second vehicle is recognized, the issue may be with the first vehicle’s inlet.
- Try a different cable: If your Amperfied charger uses a socket (not tethered cable), test with another Type 2 cable to rule out a broken CP conductor.
- Power‑cycle: Turn off the charger at the breaker for a few minutes, then restore power and retry.
- If E08 persists with multiple vehicles/cables: The CP sensing circuit on the main control board is likely defective and the board should be replaced by an authorized technician.
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Repair Difficulty
Hard
4/5
Required Part
Control Pilot (CP) Input Circuit / Main Control Board
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