E011
Volkswagen Protective Earth / PEN Conductor Fault Detection

VW wallbox shows E011; charging is disabled; app may indicate ‘PEN fault’ or ‘Protective earth fault’.

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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

Open or high‑resistance protective earth connection to VW wallbox, Incorrect TN‑C‑S / TT earthing configuration, Loose earth terminal inside wallbox, Corroded earth bar in distribution board

How to Fix / Troubleshooting

Safety first: A missing or faulty earth can be lethal. Do not attempt to bypass earth connections.

  • Visual check of earth cable: Confirm that the green/yellow earth conductor to the VW wallbox is intact and not visibly damaged or disconnected at the enclosure.
  • Check other outlets: If other outlets or appliances show tingling or shocks, switch off the main supply and call an electrician immediately.
  • Do not use extension leads: Ensure the VW wallbox is connected directly to the fixed wiring as per installation instructions, not via temporary cables.

An electrician must test earth continuity, loop impedance, and verify the earthing system type. If the VW wallbox’s internal PEN fault detection module is defective, it may also need replacement.

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Repair Difficulty

Professional Required 5/5

Required Part

VW wallbox earth monitoring module
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