This morning I found myself locked out of my garage. My interior wall opener isn't working and neither is the remote. The light on the interior pad is out, suggesting a loss of power. Unfortunately, my fuse box is inside the garage, and I I have no way of entering unless I can disable the opener and manually open the door. How in the world can I do that?
Some models include a lock cylinder on the garagedoor. Typically it is in the top panel. Insert the key (hopefully you have it) and the lock should come out when turned. A length of cord will be attached to the back of the lock. Pulling the cord releases the door from the opener and allows it to be opened manually.
Ok, Solved the problem. There are 4 bolts on the outside of the garage door, holding the opening mechanism to the door. I undid them and the coupling holding the opening mechanism to the door let go, and I was able to manually open the door. The culprit? I was sure the breaker couldn't be the problem, because everything else electrical in the house was working fine. When I looked at the box I immediately saw the flipped breaker...and the only circuit on it was the garage door. What caused the circuit to break on the garage door after 13 years, I'll never know...
There should be a release handle inside, near where the door is attached to the raising mechanism. It often has a wooden or plastic toggle handle. Pull it and the door will be freed from the raising trolley, and will then be able to be lifted manually on its rails.
I found this youtube video that helped me in the same situation. https://www.youtube.com/watch?v=BXuifg1x_-Y