Eva....the fuse you're looking for is in the bay mentioned above. On a Monaco, it's referred to as the front "Run Bay". There are many fuses and some do double duty. When you open the bay, there will be a large plastic box (18" x 18") mounted to the back wall. It has three plastic wingnuts that hold the cover on. You'll find the fuses under this cover. The back side of the cover list all the fuses. You might want to take a photo of the list and either print it out or keep it on your phone. It will make life easier next time you're looking for a blown fuse.
You also have a fuse panel in the rear bedroom, near were the main 120 volt breakers are located. This smaller panel covers several interior components.
Here is a great tool sold at auto parts stores and Walmart. It lets you test your fuses without removing them.