What happens over time is these rollers wear out but the good news is you can replace them but of course to do so you ll need to remove the sliding doors first.
How to remove sliding door rollers.
In addition at the base of the door are rollers.
You can find replacement patio sliding glass door hardware here.
The right way to replace sliding glass door rollers depends on whether you have a vinyl or aluminum door.
The door must be removed from the track before repair.
I will show you how to remove the door remove the wheel rolle.
Determine the type of roller you need.
Make sure to remove the rollers from both sides of the door.
Store your roller screws in a safe place until you re ready to install the new rollers.
This video will show you how to replace the wheels rollers on a sliding glass patio door.
Then if you have a vinyl door unscrew the old rollers and slot in the new ones before screwing them into place.
On most sliding doors there is a track that the door fits into and it rides backwards and forwards on this track.
Once the sliding glass door rollers are loose enough to remove gently pull them out from the door.
The first step regardless of what kind of door you have is removing the door from the track.