E01
Hager
Proximity / Pilot Signal Fault (CP/PP line error)
Charging session will not start; vehicle shows ‘charging fault’ and Hager EV charger front LED turns solid red with E01 on the display or in the app.
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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
Damaged Type 2 charging cable, Contaminated or bent pins in Type 2 socket, Faulty control pilot (CP) circuit on main control board, Faulty proximity pilot (PP) resistor detection in socket outlet
How to Fix / Troubleshooting
Safety first: Turn off the charger’s upstream circuit breaker and any local isolator before touching the socket or wiring. Never work on live circuits.
Steps to try:
- Power-cycle the charger: Switch OFF the dedicated EV charger breaker for 30 seconds, then switch it back ON. Wait for the charger to boot and check if E01 clears.
- Inspect the Type 2 plug and socket: Disconnect the cable from both the car and the Hager charger. Check the Type 2 plug and the charger’s Type 2 socket for bent, recessed, or burnt pins and for dirt, insects, or corrosion. Clean gently with a dry, non‑metallic brush. Do not use liquids.
- Try another cable: If you have a second Type 2 cable, test with it. If E01 disappears, the original cable is likely defective and should be replaced.
- Check cable locking: On socketed Hager wallboxes, ensure the plug is fully inserted until the mechanical latch engages. A partially inserted plug can cause CP/PP errors.
- If the fault persists: The CP/PP detection circuit on the main control board or the Type 2 socket module may be defective. Do not open the unit unless you are a qualified electrician. Contact a Hager‑authorised technician for board and wiring tests.
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Repair Difficulty
Hard
4/5
Required Part
Type 2 Socket Outlet Module
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