Austin sits in a HEAT moderate climate band, and that's the actual driver behind most of the commercial door calls we take, not age or neglect. Steel track, torsion springs, and aluminum panel skins all expand and contract with the daily swing between a cold predawn dock and a metal building baking by early afternoon. That cycle loosens track bolts, throws photo-eye sensors out of alignment by a few degrees, and fatigues torsion springs faster than their rated cycle count suggests they should fail.
On a residential door that shift is a nuisance. On a commercial door - heavier, cycled dozens of times a day by delivery trucks or forklifts - the same expansion turns into binding, and a binding door under a chain hoist strains the opener motor until it either stalls or burns out.
We also see it show up as intermittent faults: a door that closes fine at 7 a.m. and refuses to seat by 2 p.m. That's not a bad opener, that's steel that's a few millimeters longer than it was six hours earlier, catching a roller on a track that was set true when it was cooler. It's a climate problem wearing an equipment complaint's clothes.