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Carbon Monoxide detector beeping

post #1 of 25
Thread Starter 
A few mins ago, my CO detector started chirping, one quick chirp, and then about 20 sec later, it gives a quick chirp again. I thought it meant the batteries are dying but it's a unit that plugs intoo a wall socket. I brought it upstairs and it was still chirping. The 2nd unit installed at the top of the stairs is still silent. Is this signalling that there's a serious emergency, or something just wrong w the detector?
post #2 of 25
It has a battery backup in case the power goes out
post #3 of 25
Some units have battery backup incase power loss. Unplug it, look at back, open cover check for battery. If not try another one from a different location, plug it in there and recheck. If its still high, get out. Note _the unit will still beep if you take out battery and plug it back in, its a safety feature.
post #4 of 25
Thread Starter 
Quote:
Originally Posted by basstard115 View Post
Some units have battery backup incase power loss. Unplug it, look at back, open cover check for battery. If not try another one from a different location, plug it in there and recheck. If its still high, get out. Note _the unit will still beep if you take out battery and plug it back in, its a safety feature.


Opened it up but doesn't have a battery. Like I mentioned, I plugged it in upstairs and it did the same thing, and theres another fully functional (just tested it) alarm upstairs in the vicinity that isn't chirping.
post #5 of 25
How old is it? Could be a bad sensor to. I'd say if its older then 5 years its time for a new one.

And who's make is it?
post #6 of 25
Mine did the same thing. They wear out after a 3-5years. Also try vacuming it. Could be dust in the sensor (though that usually is a smoke detector issue).
post #7 of 25
yeah, what richs said ^. I'd also add to give the CO unit a couple of shots of air-in-a-can or from an air compressor, don't over-do it... then vacume lightly.
post #8 of 25
Ours do it all the time. Real PITA.
post #9 of 25
are you feeling sleepy?
post #10 of 25
Thread Starter 
I survived the night. The detector has a manufacture date of 2003, so I assume it needs to be replaced...
post #11 of 25
CO is heavier than air, thus could fill the downstairs long before the upstairs. Also a leak on the up stairs could prevent levels getting high enough to trigger a unit. I would not "assume" the unit bad, I would assume, the CO levels were elevated and get that checked. In your case I would have taken detector number two downstairs and plugged it in to see if it also began going off. If so, I would assume CO issues, if not, I would assume bad detector. In the future, assume the worse and check for the CO levels. Scott
post #12 of 25
Quote:
Originally Posted by DerrickT View Post
How old is it? Could be a bad sensor to. I'd say if its older then 5 years its time for a new one.

And who's make is it?


i had a plug in model with battery back up that did the same thing- i changed the batteries and it still did it

so i threw it out

found out later that some older CO detectors measure accumulated CO and can't reset to zero, ever

so eventually it will go off


I guess CO is best measured over time, not as a moment in time, since it tends to accumulate from a single source that might be adding amounts so small that they dissipate before they attain harmful levels, but the levels should always be 0.00

i just put a battery operated one up yesterday and was reading up on how it reports- (x ppm)over 6 hours, (x times 2 ppm) over 2 hours, (x times 4 ppm) over 30 minutes, will all cause it to fire
post #13 of 25
Thread Starter 
When to home depot and got a replacement detector. No longer beeping. Associate said that it def crapped out.
post #14 of 25
erase all doubt and toss it (as you did). Not good to fool around. They're cheap insurance.
post #15 of 25
It's shot. Needs to be replaced. You did the right thing. Throw it out and buy a new one.
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