Not sure what model rig you have but on our 5th wheel I found an additional fuse in the concealed space above the hood. To get to the fuse one would have to remove the hood. This fuse was for the motor and not the light. Also I found a fusible link on the fan motor itself. The link was covered with a woven material and taped to the side of the motor. To check it I ran a continuity tester against it before removing the woven material. My issue was the motor itself burned out before a fuse was burned. Go figure!
2015 Flagstaff 8528RKWS
2013 Ford F250 Super Duty