Need help on question about fuse size for electric jacks

[mnnsdad2]

I have a 2015 windjamer, the people at the trailer place where I bought it from where telling me not to raise my jacks up to high Baca use it would blow the fuse . We'll I did and it blown the 15 amp fuse.
We'll when looking at the fuse panel it was written in blue ink 30amp is that correct ??
I would think that the Jacks would have a limit switch on them?
I'm going to see if I can install a reset able fuse in its place.
Any one have any suggestions?

[Diallo]

Tongue electric jack? I got a 15 heritage Glenn has a 30 fuse that keeps blowing without even the load on it when going down. Went through 5 fuses in one weekend. I've narrowed it down to a internal flaw of some sort within the mechanics of rogue jack..

[mnnsdad2]

These are electric jacks and it only happens when you bring jacks up to high.