The most common cause of a sticking patio door is debris in the lower track.
Pella sliding door sticking.
A pella flat screen sliding door may not latch properly if the door is misaligned with the frame s strike leaving you unable to lock your door.
First vacuum loose debris so you can see what you re working with.
This channel easily becomes clogged with dirt and leaves because people and pets walk over it whenever they go in or out.
The tracks are notoriously difficult to clean so you ll have to pull out all the stops.
The sliding panel should glide across the tracks when you open the door without jamming.
See if you can get the bottom adjustment screw to turn lower the wheels and lift the door off the track.
Your door is old and worn out.
Clean the sliding glass door track standard sliding glass doors all have tracks.
If your sliding door is sticking or dragging along the tracks making a grinding noise the springs in the rollers could have become loose causing it to sag.
Next take a dry stiff scrub brush and work through corner to corner.
Sliding patio doors don t swing open so they require less space to operate.
Move the strike up or down as necessary to align it with the door.
Pry the door up a bit to take the weight off the rollers try to spray some w d 40 up under the door to soak the roller mechanism.
These doors are available in wood fiberglass or vinyl and 2 3 and 4 panel configurations to match the requirements of any project or budget.
To fix this you can adjust the height of the rollers by the screws on the rollers.
With both traditional and contemporary styles they complement any home.
To align the door and strike correctly use a screwdriver to loosen the screw in the center of the strike.
Sliding door tracks are magnets for dirt dust pet hair bugs grass food crumbs you name it.
The track acts as a guide for the door and also allows roller wheels to help the door run smoothly.
Each time you vacuum your floors use a small brush attachment or cordless vacuum to clean the sliding door tracks.