Hmm, CO detector just went off...

[M A V I C]

I opened up the doors and windows, then watched it drop from 45 ppm all the way back down to zero. No luck thus far finding the source. I think some ventilation to some gas appliances was partially blocked and is now open again, but I'm not sure if that was it or not.

[comaplate]

Keep the doors and windows open and give your local Fire Department a call. CO is serious stuff.

[M A V I C]

FD says to find a "a qualified technician"...

[Paul F.]

Get a second detector... and if they both go off, get out and get some air, and then call a qualified technician.
Dunno who that would be, but don't mess around.

[mattkime]

where is the detector placed?

[DP]

Don't screw around-CO is serious stuff.

[comaplate]

Might be worth giving the gas company a call as well. It's frightening that your local Fire Department passed the buck on this.

[Filliam H. Muffman]

Buy a new detector ($15 to $30) and make sure you place it properly. http://forums.macresource.com/read.php?1,747732

[M A V I C]

The detector is ~20' from our gas furnace, dryer and water heater. They're the only gas appliances in here. The appliances are in a closet. It's on the floor, plugged into a UPS. (Technically on a plug strip plugged into the UPS.)

I'm trying to track down a "qualified technician" now. I didn't call the FD, just looked at their website. They list what to do if something happens. I've learned that our practices here tend to be different than most of the country (eg, they don't inspect child car seats...)

[C(-)ris]

Call the gas company. Tell them the detector went off and they should send someone out to look.