Garage door open/close is flaky - help
For whatever reason my garage door sometimes doesn't close all the way. It will start closing and then about 18 inches from being closed, it stops as if there was an obstruction and heads back up. Sometimes I'll try again and it works fine. Also, I've noticed it tends to act up when the weather gets cold. The track seems fine if I do it manually. I've tried using 3 in 1 oil on the rollers and big long spring and it kind of seems to help but after a few days it acts up again. Any ideas?