I bought this lock in July of 2015, it worked great at first, but in the last few months has been starting to have issues with jamming open or closed. It works great in regular key mode, but anytime the internal motor is used it will jam in either open or closed positions. You have to turn the inside knob with great effort to get it to move, then it works very easily in manual mode. You cannot force it to work with the key, it will snap. I have taken it out of the door and lubed with dry graphite, it works smoothly until the motor jams. It is cheap parts that are the problem here. For the cost of this item I expected way better construction. I have tried the home position procedure but it doesn't complete, only does half then jams. I have not contacted support about this yet, but I have lost all confidence in this product.