Kitchen 'super fan' quit working.

The fan in our 04 Fleetwood Flair kitchen roof hatch quit running. Removing the plastic plate that holds the fan, I found no 12 volts present at the fuse holder. I removed the inside trim ring and found the 'coach-to-fan' plug had never been fully snapped together. Unplugged it, squirted some WD-40 in, and properly reconnected it. Cured! I'd first spent too much time trying to find some other blown fuse in the coach before I started following the wires at the fan itself.