Ford
Compatibility Issue with Upstream Protective Devices
Charger causes nuisance tripping of upstream GFCI or AFCI breakers, even though the charger itself shows no 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
Charger installed on GFCI/AFCI breaker not recommended by Ford, Normal leakage current of EVSE exceeding breaker sensitivity, Shared neutral or improper wiring in panel, Internal filter capacitors leaking more current than expected
How to Fix / Troubleshooting
Safety first: Only a licensed electrician should modify breaker types or panel wiring.
- 1. Check installation manual: Verify whether Ford specifies using a standard breaker rather than a GFCI/AFCI for the EV charger circuit.
- 2. Inspect wiring: Ensure the EV charger circuit has dedicated hot conductors and ground, with no shared neutral or multi-wire branch circuit unless wired exactly as specified.
- 3. Replace breaker if needed: If allowed by code and manufacturer, have an electrician replace the GFCI/AFCI breaker with a standard 2-pole breaker, relying on the charger’s built-in ground fault protection.
- 4. If trips continue on a standard breaker: The charger may have excessive leakage or internal faults and should be evaluated by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Branch Circuit Breaker and Charger Input Filter Network
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