I installed a Yale 6400 a couple of months ago without any problems. I have recently experienced the same problem three times - when I try to disarm the system by pressing the green button, none of the access codes (I have 3 in the system) are accepted. As a result, after the countdown period expires, the alarm is activated.
This has happened when I reset after home arming the system, and also when I have entered the house after away arming the system.
During the latest incident we noticed that when entering the PIN code, as each digit was pressed, instead of a single beep for each key, the noise emitted was three beeps for each key press. This may have been the case on every case but hadn't been noticed.
Most times the alarm works fine but is is very disconcerting becuase when we set the alarm we do not know whether the reset procdure will work.
Any help gratefully received.
This has happened when I reset after home arming the system, and also when I have entered the house after away arming the system.
During the latest incident we noticed that when entering the PIN code, as each digit was pressed, instead of a single beep for each key, the noise emitted was three beeps for each key press. This may have been the case on every case but hadn't been noticed.
Most times the alarm works fine but is is very disconcerting becuase when we set the alarm we do not know whether the reset procdure will work.
Any help gratefully received.