To determine if your carbon monoxide digital alarm has reached its end of life, refer to the following:
Manufactured between January 1, 2000 and January 31, 2006
- When the CO alarm displays an Err
![message-err]( "message-err")
message, push the Peak level button. - If it then displays an E09
![message-E09]( "message-E09")
message, the alarm has reached the end-of-life. - The alarm will also emit a quick beep every 30 seconds.
message, push the Peak level button.
message, the alarm has reached the end-of-life.Alarms manufactured from February 1, 2006 forward
- When the CO alarm displays an End
![message-end]( "message-end")
message, the alarm has reached the end-of-life. - The alarm will emit a quick beep every 30 seconds.
message, 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.
