This is because the issue is not with the door and not even with the control the knob has over the stuck latch.
Front door thumb latch sticking.
A coating of oil or silicone will also help.
This will cause pressure that will make the latch stick while it is inside the door frame.
Rinse it off and dry it good before installing it back into the door.
Grasp the doorknob with one hand and turn it to retract the latch.
Once you have the door handle off you can now try to open the latch manually with either a large flathead screwdriver or pair of needle nose pliers.
You can see where the cylinder entered the dead latch mechanism and pulled the latch back.
On the kwikset locks this looks like two little teeth that the cylinder pushes back.
Slide the doorknob off the spindle pull out the lock mechanism and remove the latchbolt from its hole in the edge of the door.
Parts are unavailable as of january 22 2019 how to replace the mechanism on a weiser handleset when the thumb pushy downy thingie won t retract latch.
A sticking door latch might require some lubrication or it might be jamming against the strike plate on the door jamb.
Remove the two screws that hold the lock faceplate on the edge of the door.
Move to the edge of the door.
Insert the tip of your powdered graphite tube into the opening around the latch and inject a few.
Turn the knob to open the door and release the knob slowly.
Repairs range from making minor latch adjustments to repositioning the door.
The issue a door latch stuck due to a jamming latch will have no real variation between how the latch moves when it is pressed in or when the handle is turned both when the door is open and when it is shut.
Lay the disassembled lock parts on layers of newspaper or paper towels.
Place the end of the straw into the opening of the lock where you normally insert your key.
Tighten the hinge screws and then try adjusting the strike plate by loosening its screws and shifting it slightly.
You should first test the door latch to ensure the latch is sticking inside the door and not due to a misaligned strike plate.
If the latch still sticks after you put it back chances are you have the door knob attached too tight onto the door.
Insert the straw into the opening of the lock.