EVSE works normally at moderate temperatures but faults or shuts down on very hot days, even at rated load.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Overheating can damage insulation. Turn OFF the breaker before opening the EVSE.
- Shade and ventilation: If installed outdoors in direct sun, consider adding shading or relocating to a cooler location per manufacturer guidelines.
- Inspect for heat damage: Look for browned PCB areas, warped plastic, or discolored wiring.
- Check sensor placement: Ensure any temperature sensor leads or thermistors are properly attached to the board or heat-generating components.
If the EVSE consistently overheats within its specified ambient range, replace the control board and inspect the contactor and wiring for high-resistance heating.
Repair Difficulty
Required Part
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