The most common problem with a Winegard antenna more than 5 years old is the Coax F-59 at both the antenna wing and the junction splice just below the antenna mount plate----rust corrosion has corroded the coax wire. This does not cause a short that would trip the booster LED light to go off or blow the fuse. ALWAYS check these 2 connections first. The splice in the ceiling cavity where the antenna wire goes thru the mount plate can usually be accessed inside by removing the crank directional assbly. If you have a coax that does NOT go thru the antenna mount plate hole and you have a square metal plate in the roof next to the antenna, corrosion is almost certain. Doug