The hall location Mr Sunshine mentioned is the converter -- that ugly brown box probably located in you hallway. The door on that box should flop down when you press it. There will be fuses on one side for the DC systems and circuit breakers on the other side for AC systems. It looks like this picture when the door is open.
Tell us what specific fuse you are looking for and we might be able to help you better. The fuses tend to be everywhere -- some in line on wires, some under the hood, some in the box under the driver's seat, others in the converter box.
As I've said probably 10000 times, "Owning an RV is an adventure in self-discovery."
Ed & Bev Felker
Retired USAF Col and retired Nurse
Traveling with Lily & Bella ('Teddy Bear' breed)
2015 Vegas 24.1 (E-350)