This area sits in a severe cold climate band, and cold is hard on the exact parts that are already aging out in a 2003-built opener. Plastic drive gears get brittle below freezing and crack under load instead of wearing down gradually - a gear that would have lasted another two years in mild weather snaps in January here. Sensor lenses fog or frost over at the base, which an opener this age reads as an obstruction and refuses to close on, even with nothing in the way. None of this is a Dayton-specific defect - it's what happens when a 20-year-old opener meets a winter that gets genuinely cold, not just chilly. Newer housing stock like Dayton's means fewer spring and cable failures overall, but it concentrates the failures at the opener head instead, right where cold weather does the most damage.