Leviton
Overheating of Cable or Internal Connections
Charger’s front enclosure or cable feels unusually hot to the touch during normal charging.
Advertisements
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.
Advertisements
Possible Causes
Loose terminal screws on line or load lugs, Undersized branch circuit conductors, Damaged or undersized J1772 connector contacts, High ambient temperature with inadequate ventilation
How to Fix / Troubleshooting
Safety first: If the enclosure or cable is too hot to touch comfortably, stop charging immediately and turn OFF the breaker.
Steps:
- 1. Check installation: Verify the breaker and wire size match the EVSE rating per Leviton’s manual.
- 2. Inspect terminals (electrician): With power OFF, remove the cover and check torque on all line, load, and ground terminals using a torque screwdriver to the manufacturer’s specs.
- 3. Examine cable and connector: Look for discoloration, soft spots, or melted plastic on the cable or handle. Replace if any damage is found.
- 4. Improve ventilation: Ensure the EVSE is not enclosed in a tight cabinet and that airflow is not blocked.
- 5. Reduce current (if configurable): Temporarily lower the maximum current setting via DIP switches or app to reduce heating until permanent corrections are made.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Leviton EVSE Line Terminal Block
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements