E005
ABB
Ground Fault / Residual Current Detection Trip
Charger shows E005 and will not start charging; vehicle may show a charging fault as well.
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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 detected by internal RCD module, Damaged EV cable insulation, Moisture ingress in charge connector, Faulty internal insulation or filter capacitors
How to Fix / Troubleshooting
Shock hazard: A ground fault indicates possible leakage to earth. Do not bypass safety features.
- Inspect charge cable: With power off, carefully inspect the ABB tethered cable or Type 2/Type 1 connector for cuts, abrasions, crushed sections, or exposed conductors. Replace the cable if any damage is found.
- Check for moisture: Look for condensation or water inside the connector, holster, or around the cable entry gland. Dry thoroughly and ensure the holster and cable seals are intact.
- Test with another vehicle: If possible, test the charger with a different EV to rule out a vehicle-side insulation fault.
- Reset RCD: Some ABB home chargers have an internal RCD reset procedure (via button or menu). Follow the user manual to reset and attempt charging again.
- Insulation testing (technician): A qualified technician should perform insulation resistance tests on the output circuit and cable. If internal leakage is confirmed, replace the RCD module or the entire power module as specified by ABB.
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Repair Difficulty
Hard
4/5
Required Part
Residual Current Detection (RCD) Module
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