There are 2 major types of springs, torsion and extension. Extension springs run above the tracks parallel to your ceiling. Torsion springs are wrapped about a bar that is above your garage door opening.
If one of the springs on your garage door breaks, you may not be able to open your door. The springs are under tension when your door is shut, so the break is most likely occur without you even being conscious of it happening.
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If you have extension springs and one of them is broken, you may be able to find a replacement and change it yourself. However torsion springs are a different matter. If you have a broken torsion spring you ought to call a garage door company to perform the repair unless you’ve been specially trained on replacing torsion springs.
There are some things about your garage door that you can trouble shoot and repair youself. If you have a garage door opener then you also have some kind of interrupter device that will keep your door from closing if an object is in the way. As a rule they are stop/reverse lights.
If your garage door begins going down, then stops and goes back up, accompanied by your garage door opener’s lights flashing, you have a problem you on which you can work
Sometimes your garage door eyes will stop and reverse your door when there’s no apparent reason. One cause might be that your stop/reverse units have been bumped and are no longer pointing at each other. If you guess that is the problem, use the set screws or wing nuts to adjust the lights, not a hammer.
If your garage door still refuses to go down and stay there, keep looking. Persistence will pay off. You will eventually find an object blocking your garage door’s "eyes.
If you’ve spent quite a time searching for the item that is blocking your garage door and nothing seems to work, try wiping the lenses of your stop/reverse lights with a paper towel. Possibly a bug or mark has gotten on the lense.
Another reason of an irregular garage door is that your opener’s logic board or gear sprocket has malfunctioned.
While a homeowner armed with an adventurous spirit and a certain quantity of mechincal skill can replace a logic board and a gear sprocket, perhaps the easiest course of action is to just get in contact with a garage door specialist and have the trouble taken care of.
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Garage doors are more often than not especially reliable and taken for granted by their owners. That means that when one fails, it’s more often than not a new experience for the average home owner. They are not attentive of the existence of garage door companies and they are afraid that their garage door can be expensive to fix. Luckily garage door businesses are in a competitive environment and this keeps their prices reasonable. Give one of them a call. You may be pleasantly surprised.