Sounds like its binding. Loosen the screws that hold the 2 halfs together. Get the key to work smothly. snug the screws and try again. If ok then tighten the rest of the way.
take a flat head screwdriver and puch the spring loaded pin near the plate in and pull the lever off... use the screwdriver to pry the finish plate off, then tighten the 2 bolts you just exposed... reverse it to get lever back on...
Take two sewing needles and slide each one each side of the broken key. Go into the sides at an angle to 'nip' the broken piece and gently but firmly try to pull it out.
Sol2
If you have super glue and the remainder key section you can try to reglue the ends back together. this will only give you adhesion to remove the broken part out not a permanent fix. put glue on part you have and never too much as to seal the lock.
Sol3
Try tapping the reverse side of the lock with short sharp taps to encourage the stuck part to dislodge out, enough to get hair tweezers to pul out the stuck part.
Sol4
You need to remove screws from handles and faceplates and remove to revieal the lock. dismantle parts and keep them in removal logical order. so they can be replaced back in reverse order.
Try checking if the lock turns completely with the door open. If it works then the bolt might not be getting past the strike plate on the jamb. Look between the door and the frame when closed and see if the lock is hitting the strike plate. You can also see if pulling in on the door more than normal gets the lock to work. If it does then it is hitting the strike plate. Up north with swelling from the winter and shrinking in the summer it is common to have two sets of holes (one for each season) for the strike plate. Reposition the strike plate in the direction you think it needs. If it does not work properly while the door is open then the bolt is misaligned or you have an internal problem. But more than likely since this is a kwikset it is your strike plate.
I would recommend taking the deadbolt back to wherever you purchased it from and exchanging it for a new one. It sounds like you got a defective unit.
Just so there’s no confusion, this website is a general question-and-answer site for anyone who needs help fixing something. It’s not the customer service website for the manufacturer or retailer you got your deadbolt from. I do not represent the manufacturer or the retailer. I’m just a random guy on the internet trying to help out. :)
If it is not fixed to the wall , drop it on a bed holding the opening dial and as it bounces open it . It took me a couple of goes to get it right but it works
A friend had a similar issue with his lock. After taking the back plate off I found that silver arm that locks into the door handle cam had lost a tiny c clip and come apart. One I reassembled both parts of the arm on the retaining peg using the c clip and put the white spacer ring on top everything looked right. Reassembling the gear section while keeping the round handle return spring from popping off was challenging.
While leaving the lock open, proceed through the combination. When you're done, stick a screwdriver or something similar in the hole and pry the locking mechanism back. Once it is out of the way you should be able to lock it again.
You can open them faster with a rare earth puck magnet that you can putting the combination digits in.
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There are also this type of attack but the Lock Picking Lawyer shows the workings. The magnet pulls the solenoid in the same way. It is a low skill attack.
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A friend had a similar issue with his lock. After taking the back plate off I found that silver arm that locks into the door handle cam had lost a tiny c clip and come apart. One I reassembled both parts of the arm on the retaining peg using the c clip and put the white spacer ring on top everything looked right. Reassembling the gear section while keeping the round handle return spring from popping off was challenging.
