It sounds like they have your tongue jack wired through your main 30 amp fuse. Check your tongue jack wiring, it should have its own fuse on it. If it does have its own fuse, rewire it directly to the battery, bypassing your main 30 amp fuse. Oh, and do not extend or retract your tongue jack till it starts clicking, that will blow a fuse (experience speaking).
The other question would be, does it sound like the tongue jack is straining when it is raising the TT? You may have a slightly bent shaft if it is. I had to replace a tongue jack because of this reason ($$$).
2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package
Our Solar Album http://www.jaycoowners.com/album.php?albumid=329