Try these simple steps.
Lock door is very hard to turn with my key.
Lubricate knob locks with graphite.
Something is stuck inside the lock.
The tip of the key is blunt or dull due to abuse.
Is it hard to push your key in your door lock.
See below for taking apart your door lock and getting it to work like new.
This occurs when dust dirt grime and other buildup accumulates on the internal mechanisms that control the movement of the lock.
Test the lock for proper function.
You can spray a little dry lubricant in the lock to free up the plug so you can open the door.
When you insert your key into the lock and it is difficult to turn or even to slide the key in or out of the keyhole the lock probably needs to be lubricated.
Our engineers carry the necessary replacement parts to repair most locks.
Forcing it could break the key in the lock.
Debris or ice from cold weather may be causing problems with the cylinder or you might simply be using the wrong key.
Spray lubricant in the keyway and insert the key a few times so the lubricant can get worked into the mechanism.
To confirm this try using the key when the door is standing open.
Assuming the door lock is hard to unlock with a key because it is dirty or gunked up inside and not damaged your best bet is to use a dry graphite.
The key is bent and the lock is straight.
Stuck pin due to dust or wear.
Squirt a small amount of graphite into the seam around the lock.
If a dry lubricant doesn t do the trick you can try wd 40.
It s possible that there is an issue with the lock cylinder.
Faulty lock the internal mechanism could be broken or worn.
If it is still difficult to operate then the problem lies in the lock.
After enough use you might find that your door lock has begun to stick making it difficult to put in turn or pull out your key.
A dry graphite lubricant will lubricate the inside of the lock making it easier to unlock.
Wiggle the lock toggle or thumb button as you apply the graphite to work it into the mechanism.