If you are using rechargeable batteries change all batteries to normal batteries If you are using cheap generic batteries change to brand name batteries. Clean all contacts carefully with WD-40 Contact Cleaner
SOURCE: wont turn on
IT COULD VERY WELL BE THE BATTERIES YOURE USING. IF NOT YOU MAY NEED REAL TECH SUPPORT. I ALWAYS USE DURRACEL ...CHEAP BATTERIES ONLY LAST A FEW DAYS. AND 1 DAY IF YOU USE THE VIDEO.
SOURCE: smoke detector won't stop chirping.
it may need to be cleaned or it is bad may need to be replaced
SOURCE: CHIRP EVERY 30 SECONDS EVEN
Unfortunately you will need to replace thew unit. CO alarms have an effective lif expectancy of about 4 years. After that point they are no longer reliable or accurate and should be replaced.
On many of the newer smoke alarm installations, all of the units are wired together so that if one goes off, it triggers all of the others so that no matter where you are you will definitely hear the maddening noise of the alarms! And if one of the other units has a bad or weak battery not only will it chirp but so will the others.
Only way around this is to cut any and all wires going to each smoke detector. They will still work because each has its own battery but there will be no more triggering of other units.
if you are talking about smoke detector replace it. the life is about 2-3 years.
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