ADEMCO VISTA SERIES VISTA-20P / VISTA-20PSIA VISTA-15P / VISTA-15PSIA We have the above home security system. The keypad emits a series of beeps twice a day and the screen shows 94. We don't have a zone set up for this number. The alarm code has to be entered on the keypad to stop the beeping. We are trying to find out what the cause is and how to correct it. I looked through the manual on this site, but can't find anything. Can you help? Thank you. Eric Kleiman