E05
Emporia
Overcurrent / Output Overload Protection Trip
Charger displays E05; app may show 'Overcurrent detected' or 'Current exceeded limit'; charging stops abruptly.
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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 drawing more current than configured limit, Incorrect maximum current setting in Emporia app, Shorted output wiring inside charger, Faulty current sensor on control board
How to Fix / Troubleshooting
Safety: Turn off the breaker before inspecting wiring. Overcurrent conditions can overheat conductors.
- Check app settings: Open the Emporia app, navigate to the charger settings, and confirm that the maximum current is set correctly for the circuit (e.g., 40A on a 50A breaker). Reduce the limit by 10–20% and test again.
- Inspect cable and handle: Look for hot spots, discoloration, or melting on the cable or J1772 handle after a trip. Any sign of overheating indicates damage.
- Verify supply breaker size: Ensure the breaker rating matches the charger’s installation requirements. An undersized breaker may trip and be misinterpreted as E05.
- Internal wiring check (qualified person only): With power off and cover removed, inspect the internal output connections from the contactor to the cable for loose screws or signs of arcing.
- If E05 persists with correct settings and no visible damage: The internal current sensor or control board may be faulty. Replacement of the control board is typically required and should be done by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Control Board with Integrated Current Sensor
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