It's important when repairing your garage door to replace parts that are overused consistently. With regards to pulley wheels the cables around the pulley wheels in an extension spring garage door. It works a little different in a torsion spring system. The cables of a torsion spring system wind around the cable drums. Did you know that garage door cables can break quite easily? 

The reason for this is that there is the usual wear and tear and aging on the cables. You can also damage your cables if you crash your car into your garage door and that should go unsaid. Constantly opening and closing your garage door he's also one of the main reasons why the cables snap. There are a few ways to inspect your garage door cables and to make sure that they are in the right working condition. If the cable looks worn and all the tips are frayed, it's probably best to replace it right away. Remember that you will most probably need to replace both cables even if only one cable breaks you will need to replace both.

Most people don't know this but garage door cables stretch over time and both cables need to be equal in length to balance the garage door equally and pull it up safely. Having said that if you use an old garage door cable with a new garage door cable enter code pool one side of the garage door further up than the other side leaving it off balance and eventually leading to the collapse of the entire garage door. Besides usually if one cable breaks the other cable will break soon after that one so it is best to replace both cables at the same time. Torsion garage door systems is another Beast. More often than not the cables come off the drums which is called cable drum slip. There are many reasons why this can happen but here are a few probable causes.

Did you know if your garage door still closes and hits an object but it does not move back up again it will rest on that object and the cable on one of the sides will come slack?