There are two major types of springs, torsion and extension. Extension springs go along the tracks parallel to your ceiling. Torsion springs are wrapped about a bar that is above your garage door opening.
The failure of either one of the two springs on your garage door will most likely keep you from being capable to open your garage door.
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 complete the repair unless you have been specifically educated on replacing torsion springs.
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There are some items regarding your garage door that you can trouble shoot and repair youself. If you own a garage door opener then you also have some kind of interrupter device that will stop 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 difficulty you on which you can work
From time to time your garage door eyes will stop and reverse your door when there is no apparent reason. One cause can be that your stop/reverse units have been bumped and are no longer pointing at each other. If you think that is the problem, use the set screws or wing nuts to adjust the lights, not a hammer.
The chief cause that your door will stop and reverse is that your "eyes" are functioning just as they are supposed to. There is something blocking your garage door. Sometimes whatever is blocking the door is not clear, so vigilantly look around your garage door opening. Ultimately you'll figure out what it is.
If there's nothing visibly blocking your garage door, don't pull your hair out. There's one more thing to try. Take a paper towel and clean the lenses on your stop/reverse lights. Now and then condensation or a little bug or dust particle can get on the lense and cause all your stop/reverse problems.
Another reason of an erratic 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 talent can replace a logic board and a gear sprocket, perhaps the easiest course of action is to simply get in contact with a garage door technician and have the issue taken care of.
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Since garage doors do not fail to work very often, most people are caught unaware of what to do to get it fixed. Most people make some attempt to trouble shoot their issue before they give up and get in contact with a garage door company. Hopefully this article has given you some insight into what items you can fix yourself and what items should best be left to a professional.