I got a Helix 7, SI, DI G2 this spring. I mounted it as usual. The first two trips out, it worked great. Now, I have lost the bottom reading, even at low speed. It will intermittently start to read, but only 24-27 fow.....I know the water is deeper. Also, the shallow water alarm, which I set at 4 fow, comes on now and again, even in 30fow.
Im thinking it’s a transducer failure....????