One of my smoke detectors has a green flashing light but alarms from time to time for no reason. Why? - Quora
![Kidde Firex Smoke Detector, Hardwired with Battery Backup & Front-Load Battery Door, Smoke Alarm 21029877 - The Home Depot Kidde Firex Smoke Detector, Hardwired with Battery Backup & Front-Load Battery Door, Smoke Alarm 21029877 - The Home Depot](https://images.thdstatic.com/productImages/d7d550a0-5988-435d-8a62-382b5f3444e8/svn/kidde-hardwired-smoke-detectors-21029877-64_1000.jpg)
Kidde Firex Smoke Detector, Hardwired with Battery Backup & Front-Load Battery Door, Smoke Alarm 21029877 - The Home Depot
![X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector, 10-Year Battery Powered Fire and CO Alarm, SC06-W, 1-Pack - Amazon.com X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector, 10-Year Battery Powered Fire and CO Alarm, SC06-W, 1-Pack - Amazon.com](https://m.media-amazon.com/images/I/81nX2CKUXeL.jpg)
X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector, 10-Year Battery Powered Fire and CO Alarm, SC06-W, 1-Pack - Amazon.com
![Somebody got so annoyed at the blinking lights in my hotel room's smoke alarm that he/she put band-aids over the lights. : r/mildlyinteresting Somebody got so annoyed at the blinking lights in my hotel room's smoke alarm that he/she put band-aids over the lights. : r/mildlyinteresting](https://i.redd.it/z5rn3osoh7711.jpg)
Somebody got so annoyed at the blinking lights in my hotel room's smoke alarm that he/she put band-aids over the lights. : r/mildlyinteresting
![Just moved into new flat. What is this blinding green light? Red light is fire alarm. : r/whatisthisthing Just moved into new flat. What is this blinding green light? Red light is fire alarm. : r/whatisthisthing](https://preview.redd.it/n1na3wzstqjz.jpg?auto=webp&s=80857fc1cdafbdaea7e1b3b2f3e18561390cc5b1)
Just moved into new flat. What is this blinding green light? Red light is fire alarm. : r/whatisthisthing
![Kidde Smoke Detector, 10-Year Battery, LED Indicators, Replacement Alert, Test-Reset Button - Amazon.com Kidde Smoke Detector, 10-Year Battery, LED Indicators, Replacement Alert, Test-Reset Button - Amazon.com](https://m.media-amazon.com/images/I/61HzX4sq5VS.jpg)
Kidde Smoke Detector, 10-Year Battery, LED Indicators, Replacement Alert, Test-Reset Button - Amazon.com
![I see this in every classroom's ceilings. It has a green blinking light. What is it? : r/whatisthisthing I see this in every classroom's ceilings. It has a green blinking light. What is it? : r/whatisthisthing](https://external-preview.redd.it/CR_Rha7rx0kbA9zQFW81Z54I7vybRlsI7ot-MqhVlGQ.jpg?auto=webp&s=a8c277a43ffef5d70e23a4bbb781b2e630af88cb)