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We have a Scantronic 9200 series home alarm that keeps ringing?

The alarm has been ringing in short bursts all evening I have turned off the power and disconnected the battery and it is still ringing every half an hour or so
Lee, July 2006
ooops - for ball box read bell box - sorry LOL

videoguy, October 2006
Your ball box obviously has a back up battery in it. Possibly it's ringing due to needing replacing - a sort of pre-total failure alert.
Most bell boxes have their own batteries to ensure that cutting the feed cables to it wont disable it or stop it ringing. The other possibility is that there is an anti-tamper switch in the bell box and there's a poor contact there although normally once tripped the bell would ring for the preset system time.

videoguy, October 2006
link Click here to see other fixes for Scantronic 9200.