Ask a helper to hold up the door and align the pin barrel on both halves of the hinge.
Top door hinge loose.
If the hinge screws have been loose for only a short time you may need to tighten them with a screwdriver.
Binding problems at the top of any door are usually the result of a loose hinge.
If one is loose remove two or more screws and try driving in longer screws.
Reinstall the hinge and screws in the holes.
Open the door grasp it by the lock edge and move it up and down.
It can be because of stripped screws in the top hinge that finally give out or simply the weight of the door.
First check that the hinge screws are tight.
Allow the glue to dry.
How to tighten stripped hinge screws.
If the hinge and jamb are painted cut the paint around the leaf with a utility knife swing the leaf away from the jamb.
If a door binds open it grasp the knob and lift up to see if a hinge is loose.
Coat a wooden golf tee with glue.
Score the tee with a utility knife flush with the mortise.
Tap the tee into the hinge screw hole with a hammer.
Break the tee off even with the bottom of the mortise.
Remove the loose screws.
Test the hinge on the latch side a door is cut at a slight bevel to make it easier to close.
If the hinge pin falls out.
Open the door wide and insert a wedge under the bottom outside corner to level it.