Andersen door will not stay open
I'd suggest carefully looking at the entire gap between the door and the frame itself...not the moulding which the door rests against.
-Let's assume the door itself is perfectly square.
-If that gap is not exactly even across the top and sides, the jam may have ben installed twisted, or was not installed plumb(i.e. straight up and down), or is not square.
Next, close the door and double-check the plumb with a level next to the hinges at the top and bottom.
-Look at the bubble carefully.
-"Just a little off" equates to the few degrees needed to swing the door open.
If both the above are perfect, then the jam and door should be plumb.
If not, the doors have to be removed, and the jam reinstalled.
The last thing to check is if the hinges were installed crooked: which would cause binding and/or a spring effect.
-Visually look at the hinges and see if they are all exactly even to the frame.
-Use a driver(nail/phillips screwdriver/other) and gently tap the bottom of each hinge pin to see if it moves easily. If there is any binding, that hinge may be off.
-Remove a pin from the suspect hinge or unscrew it from the jam, and see if the door operates normally. Do this one at a time.