Never a bad idea to inspect wiring especially since these are easy to get too. We had an issue where our AC1/AC2 were not working at all. Root cause was the wiring by Newmar was done incorrectly which put both elements in series causing them to draw more than the AC Sense Relay could handle. Since the relay wouldn't allow the elements to power on, it avoided any potential issue.
in our 2021 SuperStar, there is a 4x4 box for this wiring and posilocks are used.
let us know what you find when you open the box.
2021 Newmar Superstar 4051/Blue Ox Apollo
2017 Ford Explorer/2018 Ford SuperDuty/M&G Braking System
HAM - K5OJT - Yaesu 991A