CO detector

[Audrey II]

Last night I was on board docked in a marina about 3am my CO alarm went off. I tried to think of anything that could cause this and couldn't come up with a thing. I had nothing running accept the AC and there were no other running boat near us. I reset the detector and it trip again in about 5 minutes. If I didn't have two offer units on board that where not tripping I would have been concerned. I know that low voltage can cause this so checked both battery both were fine. Sadly I had to disconnect the unit and go back to sleep needless to say it was not the most restful sleep. When I took the unit down I looked for a date knowing that they only last about 5 years but I couldn't find a date on it. I'm assuming it just needs to be replaced but today I will move one of the other two units to the master stateroom just to be safe. Any thoughts welcome.

 

[GeeBee]

What make of unit and what were the LEDs indicating?

 

[pdecat]

They do fail. I had several only three years old that would go off after a few hours. Spray cleaners, air fresheners and other aerosols can damage them.

Try them again and see if the go off after being on the same length of time. After several times of worrying that there was some mystery source of CO around I finally replaced them and had no further problems.

 

[Billylll]

I once made the mistake of spraying dust buster canned air into one of my CO sensors killed the unit.
I second what Bruce just said.
Bill