Hidden fuses are a common problem. The front jacks on my Cardinal stopped working, and when I called the dealer to ask about a hidden fuse they told me it MIGHT be a line fuse in the front compartment POSSIBLY near the jack motor. They had no idea what color the wire would be. I found it sort of in the middle of the compartment. BTW, it was pink, and it was a mini fuse, which I didn't have in my kit, so I had to find an auto parts to get on the road.
Former: 2007 Cardinal 30W LE
Now:2018 Arctic Fox 27-5L
2008 Ford F-250 Long Bed Diesel
Total of 30 Months on the Road Since 2008