Garage Doors Can Be Track Stars
Torsion springs and extension springs. They are not new, but they might be new to you unless you work on mechanical things, such as garage doors. Torsion springs gain their power by twisting and expend it by untwisting. Extension springs gain their energy by extending, then release their energy my compressing. Without these magic springs, raising your garage door and lowering it gently would not be possible. If fact the whole idea of convenient overhead doors would probably not work. So thank your springs the next occasion you're in your garage.
Your garage door is so heavy that if you don't have some assistance in the form of a spring to help you or your opener, you won't be able to get your door open. A real pain when your car is stuck in your garage.
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If you have extension springs and one of them is broken, you might be able to find a substitute and change it yourself. However torsion springs are a different matter. If you have a broken torsion spring you ought to get in contact with a garage door company to perform the repair unless you have been specially educated on replacing torsion springs.
If you make an attempt to shut your garage door using your opener and the door goes part way down, then stops and goes back up, you most likely have something blocking your door's travel path. Or maybe not
By far the most widespread sensor that stops and reverses your garage door is a pair of "eyes" that are located toward the bottom of your garage door's track on either side of the door.
Occassionally your garage door eyes will stop and reverse your door when there's 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 guess that is the problem, use the set screws or wing nuts to adjust the lights, not a hammer.
If adjusting the beams doesn't resolve your problem, carefully check around the opening of your garage door. Whatever can be blocking the door's path may not be entirely apparent. Look carefully.
If there's nothing noticeably blocking your garage door, don't pull your hair out. There's one more thing to try. Get a paper wipe and wipe the lenses on your stop/reverse lights. From time to time condensation or a little bug or dust particle may get on the lense and cause all your stop/reverse problems.
Another reason of an irregular garage door is that your opener's logic board or gear sprocket has malfunctioned.
A DIY sort of house owner can substitute these items, however you may need the right parts. They are often tough, however not impossible to find.
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There are businesses that work on all kinds and types of garage doors. They may come to your own home or business and perform a complete repair and overhaul of your door if necessary. They exchange springs, rollers, tracks, sections, cables and entire garage doors.