In a tournament yesterday and my Ultrex was working fine then all of a sudden it quit. I checked all my connections and all good, so I started spinning the prop by hand and it went back to working or so I thought. As soon as I took my foot off it quit the next time I tried to go nothing. Finally got it back on so I switched it to constant and it would run on all speeds so I just adjusted the speed and kept fishing. Any ideas? It would work until you turn off constant then I would run to my next spot and have to wiggle it or spin the prop or lift it out of the water and back in to get it going again.