Garage Door Falls Back Down
Also it could be due to springs and cables that have been poorly installed or a damaged garage door track.
Garage door falls back down. The cables experience wear and tear after years of helping to control the movement of the door and the tension of the springs. Locate the limit switch adjustment either on the back of the opener or behind the light bulb s lens cover. Some models have two screws labeled. It goes partway down reverses direction and goes back up again.
Snapped cables should be professionally replaced before you try to use the door again. If the garage door suddenly comes crashing down and will not go back up this is usually the result of a snapped cable. Typically this happens because of springs that have become too loose or cables that are broken. When your garage door falls too quickly it is a symptom that something is loose of broken.
It hits top then bounces back down rather than stopping in fully open position. Another cause of this problem is poorly installed springs and cables or a damaged garage door track. The garage door can fall too quickly as a result of springs that have become too loose. When the door opens it sometimes falls back down part way.
This is almost always the result of a dirty. It can also be due to to cables that are broken. If your garage door falls too fast when you decide to close it then the problem may be one of these.