Glass Shower Door Safety Lock - In regards to keeping your house in tip top condition, nothing can be more annoying than a sliding glass door that won't slide.
The number 1 reason your sliding glass door won't side is because too much dirt and debris have clogged up the path of your door panel and the wheels. It is best if you've got another person present to assist you, because sliding glass doors are very heavy, although this is not a difficult fix.
You'll be able to carefully examine the track and also the wheels when the door is on its side. Mostly, you will find the wheels are filled with soot and debris, and also the track is, in addition, probably quite filthy. Use compressed air and needle tip pliers to clean the wheels. Be careful to pull every last hair out of the wheel bearings. It's wise to be diligent in this step, which means you do not have to make a habit of this process.
While you're at it, clean up all the "mating-edges" of the doorway. This is where the sliding door and every other surface of the door frame meet. A rule of thumb of thumb would be to simply wipe down anything that seems dirty. Don't forget, even if the dirt is not always on the course itself, it can eventually fall to the trail causing your door to demand another wipe down.