Most smoke detectors have an indicator light that is used to keep you updated on the status of your alarm. ... 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.

Why is my smoke detector blinking red?

If your smoke detector has a blinking red light that flashes every 10 seconds, it means that it is reacting from an aftermath of the smoke and is in a temporary desensitized state. When the smoke is no longer as heavy in the air, the smoke detector should silence its alarm and the red light will start blinking.

Is red light supposed to flash on smoke detector?

Smoke alarms will make a 'beep' or 'chirping' sound when they have a low battery or are faulty. ... 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.