E19
Zaptec
DC Residual Current Detection Trip
Charger shows E19; app indicates ‘DC fault current detected’ and charging is interrupted
Advertisements
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.
Advertisements
Possible Causes
Vehicle onboard charger injecting DC fault current, Faulty DC sensor in charger, Moisture or contamination affecting DC sensor, Internal leakage in output stage
How to Fix / Troubleshooting
Safety first: DC fault currents can compromise RCD protection. Do not repeatedly reset without investigation.
Steps:
- Unplug and retry: Disconnect the vehicle, power-cycle the charger, then reconnect and start a new session.
- Test with another vehicle: If E19 only occurs with one specific EV, that vehicle may have an onboard charger fault.
- Environmental check: Inspect the charger for signs of water ingress or condensation. Allow to dry thoroughly if moisture is present.
- Technician checks: Verify the DC residual current sensor and its wiring. If no external cause is found, replace the DC sensor or main control board.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
DC Residual Current Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements