[Bill n Susan]

Assuming that you are referring to the red switch in your battery compartment for your inverter? If that's the case, then if you can see green in the notch at the top, it's ON, if not, it's OFF. Our 2019 High Country has a residential fridge with this inverter. With ours, you also need to turn on the inverter, located in the basement, near the convenience center in addition to the red button/switch. Some folks can turn on their inverter from the main service panel in the coach.