by Raymond » 11 Mar 2009 23:32
The Kwikset knob only turns just past half way to each side. CW locks it and CCW opens it. If your lock is not working that way then something may be broken or need lubrication. You did not say whether you have a key that does work. If you do have a key, try lubricating the guts of the lock when it is off the door. Your turning tool may not have enough strength to turn the locking part alone. We often must add a small screwdriver to overcome problems like these.
If you give us more hints we'll make up more reasons.
Nothing is foolproof to a talented fool. Wisdom is not just in determining how to do something, but also includes determining whether it should be done at all.