Factory-set 2009 door
That matters for maintenance because a 2009-era door usually came with a steel opener bracket, factory-set spring tension, and a photo-eye safety sensor pair already wired in. You can handle the easy stuff yourself: wipe down and lubricate the rollers and hinges twice a year, check that the photo eyes aren't knocked out of alignment by a stray bike or ladder, and listen for a grinding noise from the opener motor, which usually means the drive gear is wearing down.
