Time to change my Carbon Monoxide Detector?

carbon monoxide detector 7 year life image

Guy Robert

I've had the same CO detector in my home for many years now, perhaps more than 7 years. The lights work (both POWER and CAUTION) and every time I press the TEST button it lets out the loud beep that it should when CO is in the air. My concern, however, is whether or not the detector is still as functional as it was when it was purchased.
Granted, I've been using the same smoke detector for 20 years and it seems to work A-OK, but are CO detectors any different?

Answer
There is a certain life expectancy in smoke and CO detectors. I read in a technical bulletin they last about 7 years. Reason is, sensitivity parameters change through the years. Put your mind at ease and install new units, also change batteries when we set our clocks ahead and back. (Easy to remember)

My carbon monoxide detector keep going off?

kevin

So this morning I woke up and it started to beep. I tried to switch batteries and now it beeps once every twelve or so seconds.

Answer
Periodic beeping or chirping, rather than a continuous alarm, is indicative of a problem with the detector itself rather than a carbon monoxide problem. Assuming the battery you put in was good and properly connected, then it could be the detector has reached its end of life (they're only good for 5-7 years, depending on make and model).

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