For best advice add the make, model and year or your RV. So many different models that knowing that will help a lot to get specific advice.
Have you checked that your battery has any voltage? If it does have proper voltage start checking battery connections, fuse near battery, fuse in main panel, etc.
If it is a main battery cutoff switch they can fail but without the model info hard to suggest what else to check. But checking battery voltage is always the first step.
__________________
2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
|