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The "latching" function (green light on 2 seconds, off 2 seconds) is to identify which unit(s) were triggered AFTER the alarm turned itself off. We had the same issue multiple times in the middle of the night- I just go room to room and find the flashing green unit, disconnected it, shop vac every crevice on the unit, & reinstall.
4 kwi 2014 · One is located next to the battery release tab and the others are equally spaced apart from that one. Note three chirps every minute is a malfunction; not a battery issue. Unit most likely needs to be cleaned.
Learn how to determine the approximate total battery life of your smoke, CO, or smoke/CO combination alarm. Find more information about your First Alert or BRK product, including manuals, tutorials, and more.
Smoke alarms may alarm briefly when power is interrupted, then restored. Power interruptions are common in areas where utility companies switch grids in the early hours of the morning. A loose electrical connection on AC or AC/DC smoke alarms.
Learn how to determine the approximate total battery life of your smoke, CO, or smoke/CO combination alarm. Need more help? Find more information about your First Alert or BRK product, including manuals, tutorials, and more.
Low Battery: This is the most common reason for chirping smoke alarms. It's usually a single beep at intervals of 30 to 60 seconds. Replacing the batteries with fresh ones should silence the alarm. End of Life: Smoke alarms don't last forever.
To find a replacement for an old smoke or CO alarm, search for your model number in the First Alert Help Center: Navigate to https://support.firstalert.com/s/ Click the search icon at the top of the page. Type the model number you want to find a replacement for. Choose your model to view its product help page and updated model number (if ...
