Sun Country Highway
Supply Voltage Sag / Brownout Sensitivity
Charger randomly stops charging when other large loads in the home turn on (e.g., AC, oven).
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
Undersized service or branch circuit, Long wire run causing voltage drop, Loose service or panel connections, Overly sensitive undervoltage detection on control board
How to Fix / Troubleshooting
Safety first: Service-side issues should be handled by a licensed electrician.
- Monitor voltage: Have an electrician log voltage at the EVSE input while large loads cycle. Significant drops may trigger shutdown.
- Improve wiring: If voltage drop is excessive, upgrade wire gauge or shorten the run to the Sun Country Highway charger.
- Load management: Consider enabling load management features or reducing the EVSE’s maximum current setting to lessen impact on the home service.
- Panel inspection: Tighten service and branch circuit lugs and check for overheating in the main panel.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Input Branch Circuit Wiring
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements