E19
Jaguar DC Residual Current Detection Trip

Charger shows E19; app indicates ‘DC fault current detected’.

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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

Vehicle injecting DC fault current into earth, Faulty DC leakage sensor in Jaguar wallbox, Wiring error bypassing sensor, Internal insulation breakdown in cable

How to Fix / Troubleshooting

Safety first: DC fault currents can compromise RCD operation. Do not continue using the charger until the cause is identified.

  • Step 1 – Reset and retest: Turn off the charger for 2 minutes, then restore power and attempt a charge. If E19 reappears immediately, stop.
  • Step 2 – Try another EV: Connect a different vehicle. If E19 only occurs with one EV, have that vehicle inspected by a Jaguar dealer or qualified EV technician.
  • Step 3 – Inspect cable and insulation: With power OFF, visually inspect the Jaguar cable and internal wiring for damage or moisture.
  • Step 4 – Sensor inspection: Locate the DC leakage sensor (often combined with the AC residual current sensor). Check that all conductors pass through the sensor core as specified and that wiring is intact.
  • Step 5 – Replace sensor module: If wiring is correct and multiple vehicles trigger E19, replace the DC leakage sensor module with a Jaguar-approved part.
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Repair Difficulty

Professional Required 5/5

Required Part

Jaguar Wallbox DC Residual Current Sensor Module
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