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Joined: Jan 1999
Posts: 1,637
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Joined: Jan 1999
Posts: 1,637 |
Sorry to bring this up here, but something strange happened in our house last night.<P>We had two new wall-installed air conditioners put in yesterday. They were turned on at 7 PM. At 1:30 AM, our carbon monoxide detector went off. We turned the unit off and opened the window, and after about 10 minutes, the detector stopped blinking and sounding.<P>I did an Internet search and was unable to come up with ANYTHING about air conditioning units causing buildup of carbon monoxide.<P>Can anyone shed some light on this? Is my CO detector just not working? We're going out to buy a new CO detector, and we have the a/c on in the room, closed up, with the detector plugged in.
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Joined: Dec 1969
Posts: 809
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Joined: Dec 1969
Posts: 809 |
Dazed,<P>Well, I'm no expert. But CO is a product of combustion, and the normal functioning of an AC shouldn't 'combust' anything. I guess I'd be a little worried that the wiring in the new ACs was overheating, and charring the insulation. Or there might be an internal short causing sparking. <P>I don't know that either of these things would be enough to set off a CO detector. But until you get the ACs checked by the installer or an electrician, you might want to stick with cold drinks and window fans, ya know?<P>JMHO
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Joined: Jan 1999
Posts: 1,637
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Joined: Jan 1999
Posts: 1,637 |
Thanks for the advice, Doug.<P>I called an HVAC guy and he said he's NEVER heard of CO as a result of an air conditioner.<P>Yesterday we duplicated the same conditions -- closed room, same settings, 7 hours run time.<P>And the CO detector didn't go off again.<P>I wonder if something was emitted because the unit was new?
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Joined: May 2000
Posts: 20
Junior Member
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Junior Member
Joined: May 2000
Posts: 20 |
Hi -<P>My son is a H/AC technician. Called him this morning after I saw your post. He says it has to be the CO detector. No way to have that happen with a/c. Only could happen if you had gas on (as with the furnace). Hope you got your problem solved!
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Joined: Dec 1969
Posts: 809
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Joined: Dec 1969
Posts: 809 |
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Dazed and Confused:<BR><B>Thanks for the advice, Doug.<P>I called an HVAC guy and he said he's NEVER heard of CO as a result of an air conditioner.<P>Yesterday we duplicated the same conditions -- closed room, same settings, 7 hours run time.<P>And the CO detector didn't go off again.<P>I wonder if something was emitted because the unit was new?</B><HR></BLOCKQUOTE><P>Could be. It's good that it didn't go off again under essentially the same conditions. You still might want to check the CO detector. If it checks out, you're probably OK.<P>Of course, I'm not a HVAC guy. I don't even play one on TV.
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Joined: Jul 1999
Posts: 1,125
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Joined: Jul 1999
Posts: 1,125 |
Is your AC unit and your furnace or hot water heater side by side or in the same utility closet? If you used enough hot water to kick it on, the A/C unit could be pulling the CO from the water heater exhaust through the A/C supply. Also, make sure your furnace is off and the gas is off to it, and the furnace duct is closed. <P>Check the batteries in the CO detector... mine started going off at weird times about once every 1-1/2 to 2 weeks (windows & doors open)... it was the batteries.<P>Hope it's something simple!<P>Thoughts & Prayers,<BR>Butterfly
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