Keyless door lock
My door lock is not functioning correctly. It seems the code is not recognized anymore. When I punch in the last code I get a sound that indicate my code is not correct. I have not chnaged my code, but it act as if I have changed it. In addition to that issue, I do not know how to reset master code for door lock. My key pad does not have a #. I have changed out batteries and still my current code is not working anymore. Please help me to resolve.