Our garage door opener has been working and not working intermittently, sometimes only raising the door partway and stopping. We called a repair shop today and they said it might be all the rain and the settling of the ground. Given all the cracks in our walls, that would not be a surprise.
But they also asked what kind of opener we have, and when we told them, they let us know that those openers have a control on the side that regulate the amount of "up" force. They suggested we increase it a bit. So far, all is well.
Who would have known?
(Note - the opener also allows you to regulate the "down" force, but I am leaving that alone. Don't want the door smashing through the ground.)