The opener runs but the door doesn't move, or it moves and reverses halfway up for no reason anyone in the house can explain. Sometimes it's quieter than that: the remote works from the driveway but not from the end of the block, or the wall button does nothing until you jiggle the wire. These are opener problems, not door problems, and they show up most in houses where the opener is the original unit or close to it. In Clearwater's housing stock, built mostly between 1958 and 2005 with a lot of it dating to the 1960s and 70s, that means a sizable share of openers are running on motors, gears, and logic boards that were never built to last this long. A chain-drive unit from 1975 doesn't fail all at once. It fails in stages - slower travel, louder grinding, a safety sensor that stops working in bright sun - until one day it just quits.