Originally Posted by UpNorthMGOBLUE
I have the same thing happening, replace the fuse and it pops right away, sparks when I put it in. I am assuming it's because of what is said above, but will be taking to dealer to check. I have a 2015 Jay Flight RLS27. I have gone thru 5 fuses now. Good things is the manual way for lifting the trailer works smooth.
If sparks and blows BEFORE you press the switch, something may have failed inside the jack.
Sherm & Terry w/rescues Steve (std Poodle) & Eydie (min Schnauzer)
2015 Jay Flight 27RLS (Camped: 102 nights 2015, 90 nights 2016)
2006 Ford F350 6.0 PSD, Lariat, 4WD, CC, LB, SRW, auto., Camper pkg.