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Hi my name is Robert...
First thing to do is actually go to the house battery and take a reading, if the voltage is over 11 volts DC you should be getting power inside the RV.
When you hit the switch inside it should trigger a solenoid valve, you should hear a click each time. Follow the noise to the solenoid, once you find the solenoid you will see two LARGE posts on each side, if you have power on one side and not the other get an insulated wire and jump the posts and see if your power comes on. IF so then the solenoid is at faulty.
IF you are missing the AC power please let me know, the AC power would be the outlets, microwave and TV, it would be separate from the DC power.
We have nothing to do with Camping World, we are RV techs that have many years of experience. I actually worked at a CW years ago along with other shops and manufacturers.