They get harder and harder to open and close over time and the most common problem is that the rollers they slide on simply wear out.
How to change sliding patio door rollers.
Once you have the sliding unit back in the door frame you can adjust the rollers for optimal performance.
I will show you how to remove the door remove the wheel rolle.
Use the wooden block and rubber mallet to gently tap the frame back onto the door.
This video will show you how to replace the wheels rollers on a sliding glass patio door.
When to replace sliding glass door rollers.
Insert the replacement sliding door rollers into the cavity along the bottom of the door.
Keep adjusting the rollers until the door is sliding back and forth easily.
Replace the bottom frame.
Swisco has an incredible online catalog of hardware for interior and exterior doors as well as rollers for closet storm and patio doors.
Installation can vary based on whether you have a vinyl or aluminum door.
Eventually every sliding glass or patio door will need help.