There are usually several different solenoids. Need to have an electrical diagram to see how it is powered.
I have a separate one for the house fuse panel. In my case it is located in my rear passenger side electrical bay. It is a White Rogers 120-901
https://www.amazon.com/Continuous-Re...2347696&sr=8-1
If yours is failed you can bypass it. A lot of people just disable it as it really doesn't help that much when you store the coach, there are other parasitic draws and the best thing to do is shut off the main disconnects.