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To determine if your carbon monoxide non-digital alarm has reached its end of life, refer to the following:


  • When the CO alarm emits a quick beep every 30 seconds and the red LED flashes, you may need to change the batteries.
  • Replace the batteries in the alarm.How-To-Change-AA-Batteries
  • If the alarm continues to emits a quick beep every 30 seconds and the red LED flashes, the alarm has reached the end-of-life.
 
When an alarm has reached the end of its life, it needs to be replaced to continue protecting your home.


 

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