The alarm was chirping earlier, whilst the continuous red light was showing. First alert smoke and fire alarm user's manual (7 pages) Smoke Alarm First Alert 9120B User Manual Ac powered smoke alarms with battery back-up and silence 120v ac ~, 60 hz, 0.04a (2 pages) The easy-access door on this First Alert Escape Light smoke and fire alarm makes maintenance easy. Make sure the AC power is on. Smoke Sensor Dual chamber ionization Indicator Lights/Sounds AC Power: Constant Green LED; DC Power: Intermittent Red LED (9120B only) Local Alarm: Red LED flashes rapidly; Remote Alarm: Red LED out. Smoke Detector Red LED Light The red LED will flash when the alarm is going off. This made no difference. It can take up to 20 seconds for the alarm to respond to the button. You have purchased a state-of-the-art Smoke & Carbon Monoxide Alarm designed to provide you with early warning of a fire or Carbon Monoxide. LED power-on indicator. Maximum of 12 smoke alarms. Test/Silence Button: Press and hold to activate test, or to silence the alarm. POWER Light (GREEN)/ SMOKE ALARM Light (RED) 3. This is the power indicator light: First Alert and BRK alarms have a power indicator light to show you that your alarm is receiving power. The light isn't a cause for concern unless the alarm is also beeping or chirping. Press and hold the Test Button on the front of the alarm until the alarm sounds. a problem,if not it is very common for detectors to flash red light every 45 to 65 seconds. Up to 18 units of First Alert or BRK Smoke, CO and Heat Alarms. Email. This has stopped the chirping, but the continuous red light remains. The work principle of optical smoke causes the red blink when it finds smoke. This smoke detector uses ionization smoke-sensing technology with an enhanced smoke-gathering design that is great for detecting smoke from flaming fires. 2. The First Alert BRK 3120B meets all requires of UL217, CSFM, NFPA 72, HUD, FHA and other agencies requiring an AC/DC Hardwired photoelectric and ionization combination smoke alarm. Read honest and unbiased product reviews from our users. Loading ... Changing out the Kidde smoke and co detectors with the Boon ... American Red … Why Do Smoke Alarms Blink? This same red light flashes continuously when the Smoke Alarm has been activated. Mounts to any standard electrical boxes up to 4” octagonal. First Alert® interconnectable Smoke Alarm has a photoelectric sensor to offer early audible and visual warning of smoldering fires, and is configured to help avoid false alarms from cooking, showers, and other everyday activities. Change the smoke detector battery to stop the red blinking light and chirping noise. The red light flashes to show the CO Alarm is receiving battery power. (Behind the Cover) Alarm Horn: 85dB audible alarm for test, alarm, and unit malfunction warning. It is battery powered, though, not mains, and just does smoke, not carbon monoxide. Page 7: Smart Interconnect" Feature A flashing green light is a normal part of the power up cycle. If there are interconnected smoke alarms the fast flashing red light will indicate which smoke alarm initiated the alarm. That is how modern smoke alarms are, where the red LED flashes every 40-50 seconds when idle and either turns solid or flashes more rapidly in alarm mode, with hardwired units also featuring a green LED that indicates the unit is receiving AC power. Some alarms have a red or green light that blinks every few minutes, while other models blink rapidly or shine a solid light. I tried vacuuming through the vent in accordance with the instructions. Thank you for choosing First Alert® for your Smoke and Carbon Monoxide Alarm needs. Models SA10YR or 4010YR: The smoke alarm may not have been properly activated. 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