Might check that your connection from pins to unit are good, corrosion or wire may have "settled" and pins may not actually be touching anything. Had this issue with my trolling motor, spread pins out and fixed it.
Good job guys, just got home from owl Creek and only had 1 dink K and a good keeper SM on a wacky worm. Was out 3.5hr and that's it, no takers on Ned and a host of other things so decided to come home and work on my brand new livewell valve that doesn't work?