My garage door, powered by an old Craftsman garage door opener, stopped going up all the way when it started getting cold outside, it would stop about 1/4 way up.
This garage door opener drives chain attached to a wide 2-car garage aluminum door, with horizontal springs at the top and a C-shaped track with rollers. I can release the door from the chain and raise the door manually, but it’s hard. Going down is pretty easy. For that reason, I think the springs are probably tired.
I did try the adjustment on the garage door opener to provide more up-force, I turned it about 1/4 turn. That helped for a few days, than it went back to stoppping halfway up again. For now I’m manually raising and lowering the door, because I don’t want to stress the garage door opener, I know it’s not supposed to bear much weight.
I want to fix this myself if at all possible, the springs look to be $50 or $60, I figure I’ll spend at least a few hundred dollars if I call a professional. The question is, the springs don’t appear to be under tension when the door is up. Should this be the case, and is there any good way to test this? I’ve also got the safety cable to deal with. Any advice?