This exposes the latch along the door edge.
Sliding door latch adjustment.
The problem of a door not latching is commonly caused by a misaligned strike plate so the first thing you have to do is to check the strike plate first for alignment.
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.
How to adjust a pella sliding door latch.
Download instructions for more information.
Adjust sliding glass door lock handle this video will show you how to properly adjust the lock and handle on your milgard sliding glass door.
Find the adjustment screw above the exposed.
Luckily this is an easy fix and all that you need is a screwdriver small chisel hammer and a pencil or marker.
On my door the holes had plastic plugs in them.
Rotate the lever on the inside of your door to the locked position.
Open your pella sliding door to access the latch mechanism along the edge of the door.
I used a steak knife to pry the plugs loose.