The sea water temperature on my Smart Craft display has been reading 163 degrees, a little warm for this time of the year, lol. This started late last season and I hoped that by removing and cleaning the transducer while on the hard would take care of it. Transducer was clean when I removed it but now that the boats splashed it's still reading 163. BTW the transducer was replaced by MM in 2015 about 45 hours ago. Is there a way to check or reset the Smart Craft system?