Fuse panel for 1980 Shasta Chevrolet motorhome. Located up under the dash on the left hand side of the steering wheel, each fuse is marked as to it's function. The problem is in actually seeing those markings to read what they say. These particular fuses are "Blade" type and simply slide in and slide out. You can also use (very gently) a pair of needle nosed pliers to remove them if you can't get a good grip on them with your fingers alone. Replacing bad fuses is one of the easier do-It -yourself automotive projects.
This image shows fuse slots with fuses in place as well as with fuses removed.