Take a look around and find the cause. Maybe it’s just one of the garage door openers commercially sold. Upon closer inspection though, if it’s more than that, it’s time take on the task of cleaning. Before beginning your work nevertheless, be sure that you’re in a safe place. Put on a hard-hat as, with these tough doors made of steel, they are able to pop open and smash head on or into your head. Most of the time, the issue lies due to the springs. Once those springs get stuck then the door will not want to slide down completely You’ll end up having to make a decision as you try to even out the door and make sure it comes down simultaneously. hn6yblhlgz.