I'm no electronics wizard but happen to know a guy. He's willing to take a look at it. When I talked to Minnkota, they said the same. Said I may have touched something else. Motor's been on the boat for better than a year and my Humminbird is at least 5 rears old and the only change made was the new battery. Checked the power level at the plug of the depth finder and at the power block and have 12.6v at each.