What action should be taken when carbon monoxide alarms reach the end-of-life signal?

What action should be taken when carbon monoxide alarms reach the end-of-life signal?

• A. Replace the alarm
• B. Disable until replacement date
• C. Ignore until it fails
• D. Return to service without replacement

Answer: (A)

When a carbon monoxide alarm signals end-of-life, it means the sensor can no longer be relied upon to provide accurate protection. At that point you must replace the alarm with a new unit to ensure continued safety; the device has exhausted its rated life and its performance cannot be guaranteed. Swapping batteries or returning it to service without replacement won’t restore its reliability, and disabling or ignoring it leaves occupants at risk. Most CO alarms have a finite lifespan (often around 5 to 7 years, depending on the model), after which replacement is required to maintain effective protection and comply with safety standards. Dispose of the old unit per local guidelines and install a new one promptly.

When a carbon monoxide alarm signals end-of-life, it means the sensor can no longer be relied upon to provide accurate protection. At that point you must replace the alarm with a new unit to ensure continued safety; the device has exhausted its rated life and its performance cannot be guaranteed. Swapping batteries or returning it to service without replacement won’t restore its reliability, and disabling or ignoring it leaves occupants at risk. Most CO alarms have a finite lifespan (often around 5 to 7 years, depending on the model), after which replacement is required to maintain effective protection and comply with safety standards. Dispose of the old unit per local guidelines and install a new one promptly.