A door and opener from different decades don't always fail loudly. More often it's small things stacking up: a safety sensor added later that's aimed wrong, a torsion spring rated for the original lighter door now straining against a heavier insulated replacement, or hinges original to 1968 construction that have simply outlived their metal fatigue life. In this region's cold-moderate climate, steady damp and temperature swings through the year accelerate rust at the roller shaft and bottom bracket faster than dry heat would, so the oldest hardware on these houses tends to be the first to seize or snap. We also see a fair number of openers original to a mid-2000s upgrade that are now past the point where parts are easy to source, which pushes the repair conversation toward replacement sooner than the owner expected.