Welcome to iRV2.
Sorry you're here with problems .
Just need to clarify some things .
The way I read about your problem , you have no 120 volt power in the coach for the outlets or roof air conditioners . Is this the situation ?
You have no change if you're plugged into shore power or running the gen set . Correct ?
The fridge and TVs operate , but the fridge may be operating on propane and the TVs off an inverter.
Is the fridge an RV type or residential ?
If the fridge is an RV type , it requires 12 volt power for the control board , so you must have battery power.
You haven't mentioned ; lights
. Do your interior lights work ?
Have you looked for tripped GFIC outlets ? Most coaches have two and a tripped GFIC could shut down 4 or 5 outlets. Kitchen and bathroom are the normal locations.