The mismatch is the door weight against the opener's rated lift, and in a neighborhood built mostly in the 1970s, that mismatch is everywhere. A wood door of that era, especially a double, can run noticeably heavier than the steel sectional doors common in houses built after 2000 across the rest of the service area. An opener that was adequate when the door and springs were new starts laboring as the wood absorbs humidity over the years and the springs lose tension. Add in that median household income here runs $129,171, well above the $74,943 median across the broader area we cover, and a lot of these households are the ones who've already put money into upgrading the door itself to something heavier or more insulated - which only makes an old opener's job harder. The opener doesn't fail because it's bad. It fails because it was never matched to what's actually hanging on the track.