Discontinued opener parts
On houses built in the 2000s, which make up most of the stock across the eight named areas we cover, the original builder-grade opener is now old enough that replacement parts are backordered or discontinued entirely. We also see openers that were never wrong to begin with - they're just the 1/3 horsepower chain-drive units builders installed by the thousand, asked to run a door heavier than they were ever rated for.
