E10
Porsche
Locking Mechanism / Connector Lock Fault
Porsche EV home charger displays E10; unit may still power on but cannot start a charging session.
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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
Failed mechanical lock actuator in Porsche wallbox Type 2 socket, Jammed locking pin due to dirt or corrosion, Faulty lock position sensor on socket assembly, Broken wiring between lock actuator and main control PCB
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before attempting any mechanical work on the connector lock. Do not force the plug out if it is locked.
- Visual inspection of socket: Check the Type 2 socket on the wallbox for debris, corrosion, or physical damage around the locking area. Clean gently with a dry brush.
- Cycle lock (if supported): Some Porsche wallboxes allow manual lock/unlock via the app or front panel. With the plug disconnected, command a lock/unlock cycle and listen for actuator movement.
- Lubrication: If the locking pin appears dry or slightly corroded, a technician may apply a very small amount of appropriate electrical-grade lubricant to the mechanical parts, avoiding the electrical contacts.
- Check lock sensor wiring: A technician should open the unit and inspect the wiring harness from the main control PCB to the socket lock actuator and position sensor. Reseat connectors and repair any damaged wires.
- Replace socket assembly: If the lock actuator or sensor is defective, replace the complete Porsche wallbox Type 2 socket/lock assembly.
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Repair Difficulty
Hard
4/5
Required Part
Type 2 socket lock actuator and position sensor assembly
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