E024
EVBox
Contactor Feedback / Weld Detection Fault
Charger displays E024; app shows contactor feedback error; unit may click but not start charging.
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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
Feedback contacts on main contactor stuck, Broken feedback wiring to main board, Faulty feedback input circuit, Incorrect contactor type installed
How to Fix / Troubleshooting
Safety: High‑current components inside the charger must only be serviced by qualified technicians.
- Listen for contactor: Start a session and listen for the contactor click. If it clicks but E024 appears, feedback contacts may be misreporting.
- Inspect feedback wiring (qualified): With power off, locate the auxiliary contacts on the contactor and trace their wires to the main board. Ensure connections are secure.
- Check contactor type: Verify that the installed contactor matches the EVBox specification and includes the required auxiliary contacts.
- Replace contactor: If auxiliary contacts are mechanically stuck or burned, replace the contactor with the correct EVBox‑approved part.
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Repair Difficulty
Professional Required
5/5
Required Part
EVBox Main Power Contactor with Auxiliary Contacts
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