The opener problems we see in Farmersville track pretty closely with the age of the housing - median built right around 1971, versus the mid-1980s median across the rest of the territory we cover. A unit installed as a retrofit in the 70s or 80s on a chain drive has had decades of lubricant breakdown, worn sprockets, and limit switches that drift out of calibration because nobody's reset them since the Carter administration. Add a cold winter night and grease that's gone thick and gritty, and a chain drive that was already struggling to find its limits will just stop finding them.
We're also seeing openers here that were sized for a narrower single door and later swapped onto a wider double door without upgrading the motor. That's not a defect, it's just a mismatch nobody flagged at the time, and it shows up as a motor that strains, overheats, or trips its own safety cutoff every few cycles.