Most doors on tub enclosures hang from the top rail and slide along its guide track. If the door doesn’t roll smoothly, you must remove the doors and inspect the wheels to see what needs fixing.

Step 4: Hang the door at the music and modify the rollers for clean operation. Troubleshooting Common Issues Doors Coming off Tracks: Ensure the track is level and rollers are nicely adjusted.

To keep the sliding glass door from sticking, you need to replace the rollers on the bottom of the door. This is not hard, just a little cumbersome. The door is large and somewhat fragile.