After looking at the picture on the fuse, I see a small burnt spot on the upper right side. I would most certainly verify the fuse is good. As stated earlier use a vom or even a test light to check for power on both sides (connections) in reference to ground. If there is power on both sides, move on the problem is not here.
After looking at the pic again, I see the burnt spot is on the power side from the relay, so if a short was applied there it mare than likely would not blow the fuse. But test it to be sure you have power going into the coach.
