My high water alarm for the past year or so has gone off randomly. (Of course I'm never there to experience it which if I was I may have more clues) It either stops after a few minutes or some one from the marina plays with the float switch and it shuts off. There has never been high water in the boat when it has gone off. I replaced the float switch after a couple of episodes but it continued to happen. This last time it happened the marina pulled the wires off the back of the siren in the cockpit to make it stop. OK all that said I'm headed up this weekend with my trustee meter to try and chase down the problem. My question for you folks is have you had a similar problem, and if so, in the end where was the fault?