So the AC in my farm truck quit. That's pretty normal this time of year. Usually just put a can of 134 in and it's good. So I grabbed my hose and a fresh can and hooked it up and the gauge was in the red? It obviously wasn't cycling. Checked the fuse and it was blown. Switched it, and it cycled briefly and blew again. It repeated this a couple more times. Anything obvious that could be doing this? Thanks!