2418539

Hello, We have an old, now unmonitored ADT alarm that was in the house when we moved in several years ago. We have been using the alarm system as a regular unmonitored set-up fine until 2 days ago. Distracted by the kids, I accidentally typed in some numbers on the key-pad, which weren't my code. I 'escaped' this code and set the alarm properly - which worked fine. However, now when we walk past certain (but not all) PIR sensors in the house the ADT keypad beeps (despite the alarm being unset). I can't think what on earth I did to do this, and can't find any way of fixing it - please help!! I have attached a photo of my control panel, if that helps diagnose the problem. Thanks!!