Slo-Blow Fuse Holder Short?
Could the slo-blow fuse holder be causing the fuses to blow in our tongue jack?
On our last trip we were exiting a parking lot that had a divot between sidewalk and road and heard a couple scrapes, presumably something in front, then something in rear.
Upon arriving at our campsite tongue jack wasn't working--we found the slo-blow fuse in two pieces. We hand cranked to set up, purchased new fuses, and jack worked to get us home. Unhitching at home it blew again.
Just replaced it and it blew before I even did anything with jack. Upon inspecting fuse holder there it a black burn mark on the inside. Could it be the fuse holder itself causing the problem if it had sustained trauma? Or should I be looking for some other problem?