The Knotmeter (or would it be knotometer?) on my 2004 H260 stopped working. I checked the openings in the hull as well as the manual but couldn't determine which opening was for the knotmeter. I think the brand is a Sea.... but I didn't write the name down. This is all from last year. The depth finder works but the distance doesn't seem be working either. Any tips for trouble shooting? I tried to find a reset button. The boat is now in the water for the season.