Do you know the first thing about garage door opener torsion springs? If not, now is the time to learn. Generally speaking, the torsion tension spring is the part of your door that pulls it up and holds it in place. As you can imagine, if the torsion tension springs are not working properly your door is not going to function properly.

Along with the above, faulty torsion tension springs are a huge safety risk. If the torsion tension spring becomes detached while the door is not closed, it will come crashing down. This is dangerous to people, especially children, as well as anything that you may store in your garage – such as your car.

If you are installing your own torsion tension springs make sure you know exactly what you are doing. When it comes to important garage door parts, the tension springs should never be overlooked.

source: http://www.diygreenproject.com/about-garage-door-opener-torsion-springs