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.
Fire alarm light blinking green.
Building wide horns and strobes will activate.
Some alarms have a red or green light that blinks every few minutes while other models blink rapidly or shine a solid light.
To learn more about what the lights mean on different alarm models read our guide.
Not only can you have dying batteries and dirty sensors but you need to know if the alarm chirps due to a fire or because of regular operation.
Usually a blinking green light on a detector means that it is operating properly.
What does the green light mean.
Why is your alarm system trouble light light on.
Green light normal power is on and the fire alarm system is operating normally.
You may also notice your smoke alarm has a green light.
Blinking or illuminated trouble lights on a security system can mean many things.
This condition requires your attention don t ignore it.
The color of the led light and the blinking pattern may differ based on the model you own.
In the spirit of answering our most frequently asked questions let s explore why the trouble light may be lit on your keypad.
If that does not work check the owner s manual or call the manufacturer for more information.
If this is the case check the circuit breaker and the wiring in order to fix the problem.
The lights will indicate zone or the display will show the location of the alarm.
If the red led flashes rapidly and the horn pattern is three beeps followed by a pause and then three further beeps followed by a pause then the alarm has sounded.
A fire alarm control panel has lights to indicate its status.
The unit with the rapidly flashing led and the horn is the one that triggered the alarm false or not.
The light isn t a cause for concern unless the alarm is also beeping or chirping.
This means that ac power is operating the smoke alarm so if it goes out it means the power has been interrupted.
Red light alarm a zone or device is in alarm.