We had a Sandpiper that was notorious for blowing fuses on the front "legs" that raise it up to hitch height. The first time this happened was during a 100+ Texas Summer day and I had to manually crank the fifth wheel up high enough to hook it to our truck - then manually lower it at the campground.
I soon found out that it was simply a blown blade-type fuse, so I kept a good supply of those. And it paid off, because in extremely hot weather this blowing of fuses was a somewhat predictable experience.
Robert & Estha Shiflet
Cardinal 3456RLX - '17 Ford F350 Lariat Ultimate - DRW w/B&W OEM Companion hitch
Nights Camping 2012 - 2020: 966 ~ Nights Camping 2021: 4