Welcome to iRV2.
Sorry your here with problems .
Now that you have the RV home , what kind of circuit are you plugged into?
If that circuit is GFIC protected , you may have tripped the GFIC at the house.
What kind of extension cords , adapters are you using ?
You said A/C not working ; UNLESS , you are plugged into a minimum 30 amp dedicated circuit , your A/C will overload the supply .
Have you tested the house outlet and cord?