First off, welcome to iRV2!
Second, you should add a "signature" to your profile. It contains whatever info you want; most people put info about their coach there, so they don't have to type it into each message. Instructions for adding a signature are here
Re: Fuses. Your coach could be built on a 2006 or 2007 chassis. The 2006 and 2007 Ford F-53 chassis manuals are here
. Check F6 in the Power Distribution Box (under the hood) and F41 in the Passenger Compartment Fuse Panel (inside the cabin, to the left of the steering column).