On First Alert® carbon monoxide alarms, the red light flashes to show the Carbon Monoxide Alarm is properly receiving battery power. If you do not see the red light flashing, change the batteries in the alarm immediately.
How do I get my smoke alarm to stop flashing red?
If you want to manually reset the smoke detector so that the red blinking light will stop, you can press the test/silence button for a few seconds. If your device includes a keypad press “*72” or if your smoke detector is hardwired, look for a reset button to push and hold for 20 seconds.Apr 16, 2020
Why is my smoke detector blinking red every 10 seconds First Alert?
Low or missing battery (9120B only), red LED flashes once per minute and alarm "chirps" once per minute. ... If a unit goes off and is silenced by the homeowner, the red LED will flash once every 10 seconds.
Why is my smoke detector blinking red every 8 seconds?
The red LED will illuminate for 1.5 seconds every 8 seconds while in hush. This indicates that the alarm is in a temporarily desensitized condition.
Are First Alert smoke detectors supposed to blink red?
First Alert and BRK alarms have a power indicator light to show you that your alarm is receiving power. Some alarms have a red or green light that blinks every few minutes, while other models blink rapidly or shine a solid light. The light isn't a cause for concern unless the alarm is also beeping or chirping.
Why is my smoke detector blinking red every 45 seconds?
All smoke Alarms also have a red light that flashes momentarily every 40-60 seconds to visually indicate they are operating. This same red light flashes continuously when the Smoke Alarm has been activated.
Why is my smoke detector blinking red every 40 seconds?
The green LED (when illuminated) indicates the presence of AC power. The red LED has four modes of operation: Standby Condition: The red LED will flash every 30-40 seconds to indicate that the smoke alarm is operating properly.