Why Is My Smoke Detector Blinking - Ace Hardware
About this video
Watch as Ace's Home Expert, Lou Manfredini, along with Patrick a firefighter gives you the tips and advice on why your smoke detector would be blinking.
Products Featured:
Smoke Detector:
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Fire Safety
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Related article summary
A blinking red light on a smoke detector can mean several things: normal operation (periodic blink), low battery, a need for testing, dust/debris in the sensing chamber, end of life (replace after ~10 years), or actual smoke detection (usually with loud beeps). Check the manual for model-specific meanings, clean and test detectors monthly, replace batteries regularly, and replace detectors around 10 years. Resetting by holding the test/reset button or removing power/battery can clear some persistent red lights.