It s possible that there is an issue with the lock cylinder.
Key won t turn in lock to door.
This is the correct position for the pin tumblers to align in the cylinder.
Faulty lock the internal mechanism could be broken.
Turn the key so that the keyway slot is in the exact position it was in when you inserted the key.
There are two simple things that you can try to make the knob work properly again.
How to turn a stuck worn broken cynlinder lock 6n2 2000.
You may be able to take care of the problem yourself or you may need to call a locksmith for help.
Spray the lock with lubricant to remove dirt and dust.
When you insert your key the key raises the pins to the point where the division between the top pins.
In this event use some professional lubricant like w d 40 to get the gears sliding better then try the key again.
While keeping others out is the goal from time to time a sticky lock can lock can hold a small child in or prevent you from opening the door.
Slide the key in the lock and tap lightly on the key to lubricate the inside of the lock.
Someday you might come home or go to open up your business and find that your key won t turn at all not even a little.
At right illustrations show the operation of a standard pin tumbler lock.
Door knob locks can be frustrating.
After a long day at work the last thing you want is to come home put your key in the lock and find that it won t turn.
Get a double cylinder lock that needs a key on the.
A key that doesn t turn in the lock could have several causes.
An old lock might just need some lubrication in order to turn properly.
When this happens it is time to make the repair as soon as possible.
Key is hard to turn or won t go in the lock don t force the key.
Debris or ice from cold weather may be causing problems with the cylinder or you might simply be using the wrong key.
There are several reasons this might occur.
Flip the key and open the door.
This video may be useful if you insert your key to any lock of your car but you cannot t.
If the problem was just debris or rust lubricant will solve it.