It took me a while to figure where the steady alarm sound was coming from as everything was working just fine. When I unplugged the A-ten it stopped. Throughout the day it was temperamental. (wet day) The weird thing is it was going even when the master power was OFF! It started as a faint solid beep, stopped for a while then got loud enough to stop me from fishing. Now it seems fine. What is this alarm for anyway? Should I be alarmed? thanks