When sliding glass doors get stuck, it can be a frustrating experience. The important thing is not to force the door until you have identified the problem to avoid causing damage. To address issues with your sliding doors, you will most likely need to remove the door by lowering it out of the tracks using the roller adjustment screws, typically found at the bottom of the door.
Debris can get stuck in the tracks the doors slide on, causing them to become jammed. Using a flat head screwdriver, pry out any debris. Follow this with compressed air, if available. Use hot water for clogging that is proving difficult to remove.
Check that your rollers are clean, because mud and other materials can stick to the rollers, causing them to get stuck on the track. Remove the rollers and soak them in hot water while you are cleaning the tracks. Evaluate each roller, and if there is cracking or other visible damage, replace the roller. There often are rollers on the tops and bottoms of doors.
While you have your sliding door removed from the tracks, replace any damaged or missing weatherstripping to save money on utility bills. Also check all of the screws securing the tracks and replace any that are missing.
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