Question re 2004 trail-lite 22' motorhome by r-vision(B+) Last nite I lost all my "shore power" . I was plugged in to a 50 amp using a converter adapter to my 30 amp cord. I am in Savannah Ga and ...
Often the electric panel will be someplace relatively close to the shore power inlet.
I would guess you simply popped the main 30A breaker. The air conditioner uses a good chunk of the 30A available, and using another high draw device and not too much more could easily pop the breaker. (Microwave, water heater on electric, hair dryer, some coffee makers, etc.)