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Well now the 15 second bepping is back again. *85508 did not help. What else can I try for model # PC 5508? I reset the door chime with *4 from the manual.

Turned out I have panel model PC5508. So I entered *85508 ## and the 15 second beeping has stopped but now the doors do not chime when open. How do I get the doors to chime again?

Model # PC1555. I unplugged the phone jack in ADT box and house phone still works fine. Do I still need to try *85010 or is that just if I lose phone line?

I still want the chimes to sound when the doors are open. Yes, I entered my code and this does nothing now. It stopped it from beeping for a few days but now it beeps all the time even when I enter...

Cancelled ADT service but my alarm keeps beeping and trouble light on. WHY?