
SAFETY ELECTRONIC LOCK – Auto-locking function enhances security and convenience.MULTIFUNCTIONAL CODE LEVER LOCK – Input a programming code and you can Add/Delete user’s code individually, mute on or mute off, set one-time user code for visitors or hourly employee, set temporarily disable user code and set the automatic locking time (10 to 99s).Symmetric design with detachable handle, our lock applies to either left hand or right hand door.



The other (less likely) possibility is that the bolt mechanism is broken. (Uncommon but not unheard-of problem wood shrinks as air humidity decreases, and sometimes things shift enough that a hole bored in midsummer won't quite align well enough in midwinter.) I'm betting you'll see part of the linkage banging into the surrounding wood, and that if you remove a bit of wood there for the linkage to operate it'll solve your problem. Try turning its hub with a screwdriver and watch it move. Looking into the resulting bore through the door, you'll be able to see the deadbolt's mechanism. If you want to try doing something yourself: Dismount the thumbturn and lock cylinder. It's their lock, it's their property, it's their responsibility to fix it (or to authorize you to get it fixed and deduct the cost from your next rent check, or something of that sort).

Since you said it's a rental, I'd start by calling the landlord.
