A smoke detector blinking red could mean: It's Working Properly: Some brands use an occasional red blinking light to indicate the unit is working properly. Check with your manufacturer to make sure. You Need to Run a Test: Regularly testing your smoke alarms helps you spot problems before a fire occurs.
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.
If your detector or alarm has a blinking or steady light with no audible alarm sound, this typically indicates that the unit is receiving power.
A flashing green light means that the smoke detector is getting the right amount of power supply. Basically, the green light indicates that the smoke detector is active. Red Light: The red light can indicate more than just an emergency threat. Your smoke detector blinking red could mean more than one thing.
If your alarms use regular batteries, swap in fresh batteries at least once a year. A “chirping” sound means that it's time to change batteries. Because alarm sensors wear out, replace each alarm at least every 10 years. Also, alarms have labels showing when they were made.
Low battery: This alarm is equipped with a low battery monitor circuit which will cause the alarm to produce a single “chirp” approximately every 60 seconds and blink the Red LED every 30 seconds, for a minimum of seven (7) days should the battery become low.
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.
If your smoke detector is blinking red, it means that the batteries are low. While this can happen with all smoke detectors, it's more often the case with First Alert smoke detectors, since they are known for their exceptionally long battery life.
The most likely reason for an alarm sounding - without the presence of smoke or a fire - is dust inside the cover unit. If every alarm on the system is sounding, a rapidly flashing red light on the cover of one of the units will show where the alarm was triggered.
The green light on my smoke alarm has gone out, what does this mean? The AC power has been interrupted. Check the circuit breaker and AC wiring to correct the problem.
For most residential smoke detectors, blinks are common; you need to be conversant with the colors showing. Different smoke alarms use the green and red LED to indicate the device's power status such that a flashing green means low battery while a constant blink means AC power is connected.
The most likely reason smoke detectors go off unexpectedly is that people aren't changing the batteries in them often enough. In most sensors you might think of, the strength of the signal goes up when they detect what they're supposed to. Common causes of smoke detector false positives around the house.
This battery characteristic can cause a smoke alarm to enter the low battery chirp mode when air temperatures drop. Most homes are the coolest between 2 a.m. and 6 a.m. That's why the alarm may sound a low-battery chirp in the middle of the night, and then stop when the home warms up a few degrees.
Some smoke alarms also double as carbon monoxide detectors. When it gets cold outside, it's normal for people to crank up the heat. Furnaces, space heaters, fireplaces — these are some solutions to warming up a home.
The CO alarm will sound if your sensor detects a high buildup of carbon monoxide in your home. Most people begin to feel the effects of carbon monoxide at 50 ppm, so be sure your detector can sense an amount of 50 ppm or less.
You Hear a Chirping Sound
A smoke alarm that needs attention will chirp for a long time, sometimes indefinitely, if it is hardwired to your electricity. But you'll want to make sure you take action ASAP once you hear that sound because it means the batteries in the smoke detector are going bad and need to be replaced.
Your smoke alarm may sound when its very cold outside, or if a door adjacent to a heated area is opened, like in an entryway. This is due to condensation (water vapor) in the detection chamber.
If your smoke detector is blinking red, it usually indicates that the battery needs to be replaced. Though occasionally, it could also mean that there's a short circuit somewhere in the device. Some models also have a speaking function that will announce “Fire!
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.
On First Alert carbon monoxide alarms, the red light flashes to show the CO alarm is properly receiving battery power. If you do not see the red light flashing, change the batteries in the alarm immediately.
When the Alarm detects potentally dangerous levels of CO, it flashes the red alarm light and then sounds a loud alarm if the CO persists. The digital display (Model Ei261DENRC only) indicates the CO level in parts per million (ppm) CO.
Luckily, if your First Alert carbon monoxide alarm is holding a steady red light, this means that it is operating normally.
If this happens, you must replace the batteries in your smoke detector. We recommend retesting the detector once the batteries have been changed.