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First Alert Smoke Alarm 9120B


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  • Posted by bburckle on Oct 27th, 2009 at 11:00am

    Inseting batteries
    Inserting batteries in BRK First Alert, model no. 9120B
  • Posted by gsamueluscs on Aug 27th, 2009 at 11:36am

    Silent alarm.
    how do i silent this alarm?

    it beeps every min and has a solid green light.
  • Posted by saliz1216 on Jun 29th, 2009 at 10:21pm

    Changed Batteries, won't stop chirping
    First Alert 9120B Smoke Alarms-We have 4 of these & they all started chirping at the same time. We changed all the batteries. 2 have stopped chirping but 1 is still chirping about every 30 seconds and the other beeps every minute or so. Help, I'm going crazy and my dog won't stop barking at the chi…
  • Posted by m.moss03 on May 26th, 2009 at 10:55am

    smoke allarm beep
    there is a single beep every 30 seconds.
  • Posted by y_hgonzalez on May 19th, 2009 at 10:15pm

    replace battery
    I need the manuel to show me how to replace the batter in model No. 9120B
  • Posted by thesnowgroup on Mar 18th, 2009 at 9:38am

    TOO SENSITIVE!
    We recently remodeled. New kitchen and appliances, etc. New stove is a downdraft unit. We have new smoke alrms all over the house, hardwired / connected together. Even when we simply start cooking something on the stove and no smoke has been produced yet, just heat, the smoke alarms start going …

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Recent User Activity

  • First Alert Smoke Alarm 9120B
    Changed Batteries, won't stop chirping
    First Alert 9120B Smoke Alarms-We have 4 of these & they all started chirping at the same time. …


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