E05
go-e
Residual Current / DC Fault Detection Trip
Charger shows E05 and refuses to start; app may indicate residual current device (RCD) or DC fault error.
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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
Leakage current from vehicle exceeding limits, Faulty internal DC residual current sensor, Moisture ingress in go-e Charger causing leakage to earth, Incorrect or missing upstream RCD type (e.g., not Type A or B as required)
How to Fix / Troubleshooting
Warning: RCD/DC fault trips indicate potential electric shock risk. Do not repeatedly reset without investigation.
- Test with another vehicle: If possible, connect a different EV to determine whether the fault is vehicle-specific.
- Inspect for moisture: Turn off power, open the charger, and look for condensation, water tracks, or corrosion on the PCB and terminal block. Dry the unit thoroughly, improve sealing, and correct any cable gland issues.
- Check upstream RCD: Confirm that the installed RCD/RCBO type and rating match go-e requirements (typically Type A with integrated DC detection in the charger, or Type B if no DC detection). Replace incorrect devices.
- Examine DC fault sensor: Locate the internal residual current sensor (toroid around conductors). Inspect for cracks, loose connectors, or contamination. If damaged or readings remain abnormal, replace the sensor or entire power board.
- Reset and test: After corrections, clear the error via app or power cycle and perform a short test charge while monitoring for further trips.
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Repair Difficulty
Hard
4/5
Required Part
DC Residual Current Sensor
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