Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Tilt and slide patio door adjustment.
The most common type is the tilt and turn mechanism.
On my door the holes had plastic plugs in them.
The structure of a tilt and turn system.
Start by adjusting with the door closed.
Tweak the hinges until you get a smooth open and close.
If the door becomes even harder to open turn the screw in the opposite direction.
Use an allen key on the screw at the door side of the hinge.
Give the screw a clockwise turn and test to see whether the door slides easier.
In order to properly adjust a patio door it is important to understand its opening mechanism.
Pay attention to the following steps.
The locking pin is located at the side of the handle.
Inside a standard sliding glass door there are adjustable rollers that help it slide back and forth on the track.
If a patio door is difficult to operate won t lock properly or is loose or drafty make adjustments to the roller latch or strike to fix the issue.
This adjustment works best for a door that has dropped towards the handle side and not the hinge side.
There are holes on your sliding glass door that conceal the adjusting screws to these rollers.