The most common is that the oil inside the door knob lock is old and has seized causing the lock to catch.
Lock button stuck on door.
If that does not solve the issue depress the lock button rapidly do.
Lock and unlock the doorknob both with the key and by pushing the push button and rotating the.
A video on youtube showed me how to remove the knobs since the push button lock would not release.
Release the button quickly try sliding your finger off the button so the pressure is maintained up until the precise.
When a push button door knob begins to fail it either needs greasing or complete replacement to fix.
Any suggestions for how to unlock and open a door with this type of lock.
Another common cause is that the screws on the door knob are loose.
The lock on a push button knob is meant strictly for household privacy.
This can cause a slight void inside the door knob lock which can also cause it to catch and get stuck.
Insert a small amount of graphite into the lock from the outside of the door and insert the key.
Push button door knobs are used throughout the home as a cheap way to lock interior doors.
Make sure the lock is unlocked before you do this.
These are all problems you can repair yourself.
I have tried using scissors to turn the latch as well as a hanger to see if it could be jimmied and small screwdrivers to see if the lock itself could be released.
Often they stick or break due to excessive pressure being placed on the door.
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.