Siemens charger displays E011; charging stops and cannot be restarted until power is cycled.

Safety first: DC leakage is a serious safety concern. Do not bypass or disable DC residual current protection.

• Test with another vehicle: If E011 only occurs with a specific EV, the vehicle may be injecting DC into the PE/line conductors and should be inspected by the vehicle manufacturer.
• Inspect sensor location: With power OFF, locate the DC residual current sensor (typically a toroidal core around the supply conductors). Ensure no additional conductors or metallic objects are routed through or tightly against the sensor.
• Check wiring: Verify that all phase and neutral conductors pass through the sensor as per Siemens wiring diagram and that PE does not pass through the sensor.
• Environmental factors: Avoid installing strong magnets or large transformers directly adjacent to the charger, as they can affect sensor readings.

If E011 persists across multiple vehicles with correct wiring, the DC residual current sensor or its interface circuit is likely defective and must be replaced by Siemens service.