no power inside my 1994 Fleetwood Tioga class C

I have the same exact unit. I keep my mine inside a building with 30AMP wiring installed. I unplugged it from the wall outlet one time but forgot to plug it into the outlet in the power/cable compartment. Nothing worked on the inside. When I plugged it into the compartment, everything worked. I blame it on "brain fade". That's the easiest thing to check first.