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On first alert® carbon monoxide alarms, the red light flashes to show the carbon monoxide alarm is properly receiving battery power. fiscoteca?

Learn how to troubleshoot and fix issues with a first alert smoke alarm, including common causes of red blinking lights. Te the red led on the initiating alarm will flash rapidly. If your smoke detector blinks red, it may indicate low battery power, dust accumulation, a defective smoke alarm, heat from the kitchen or bathroom, proper functioning of the device, an old device, or smoke detection. In most cases, replacing the batteries will resolve the issue.

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