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Question DetailsAsked on 5/2/2014

I have an old Brinks security system (account long cancelled) sys. still connected. How do I turn everything off?

Bought house 2 1/2 years ago, contained the system. Now when I have power failure the siren goes off briefly and then the control panel beeps and continues to beep long after the power comes back on. When power remains off the control panel buzzes.

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1 Answer


Irritating, ain't it - what is happening is that the backup battery powers the siren for a short warning alarm that the power went out. The buzz is the signal that it is on battery backup power. Then as the battery gets low (may be pretty quickly with an old battery), it sounds the low battery alarm (chirp usually) at the panel and sometimes through the siren as well, and continues until the battery charges up enough to shut off the low battery alarm after the power comes back on.

You need to find the backup battery - usually black plastic, about 1/2 the size of a car battery and similar looking, typically installed in a wall cubby close to the master alarm board - not the keypad, but the actual alarm system printed circuit board and wiring panel, which almost always has metal keyed panel door. First, pull the plug on the battery charger. Usually (not always) the battery connector to the alarm panel can be unplugged. If not, pull the plug on the charger for the battery, then disconnect the battery cables from the battery - black first, then red - being sure not to touch any metal tool across the battery terminals in the process.

You also need to disconnect or turn off the main power to the alarm system - sometimes just a simple wall plug in, sometimes hardwired so you may need a technician. May or may not be on its own breaker which you could shut off, but usually not - usually on a shared circuit. Some models have a Power button you can shut off the main power with - is intended for maintenance, and usually does NOT shut off power to the automatic battery charger.

If not up to doing this yourself, call an alarm company to have it disabled. An electrician could do it to, but probably about $125 versus probably about $75-100 for an alarm company technician. Of course, be prepared for a selling pitch to try to get you to reenable it and sign a monitoring contract.

Answered 6 years ago by LCD

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