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Old 08-22-2011, 10:15 PM   #1
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Kidde Smoke Alarms FALSE alarms


We had this problem about two years ago but replaced the defective detector. Here is the problem, the stupid thing goes off, but because they are all linked, all the darn detectors go off, so there is no way to find the bad apple. Of course, it was the night before the first day of school so the absolute worst possible time, 3:30 am when the hell raising noise started. These are hard-wired units, no dead battery issue. Power was on, no smoke, no problems, just waking everyone up from a dead sleep. In my opinion, Kidde smoke detectors are true pieces of crap, and the stupid code calls for one in every room. Pure torture. Any suggestions? Thanks.

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Last edited by DSmith1; 08-22-2011 at 10:16 PM. Reason: Meant years but said weeks, still blotto from detectors going off in middle of the night
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Old 08-23-2011, 06:36 AM   #2
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Kidde Smoke Alarms FALSE alarms


You did not state what model you have installed.

On 1275 you can locate the offending alarm. It will be the unit that is blinking after the alarm goes off.

Nuisance alarms can also be caused by external contaminants.

There may be dust or insects in the alarm chamber. Even in clean environments dust will collect in the sample chamber. This will cause the alarm to be overly sensitive and cause it to go into alarm. Insects can have the same effect and the movement of the insects in and out of the chamber will cause the alarm to go into alarm. If the unit seems to go into alarm mostly at night, it could be due to insects

You can try cleaning them by using a vacum with a crevice tool or using comressed air

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Old 08-23-2011, 10:16 AM   #3
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Kidde Smoke Alarms FALSE alarms


I've have the same problem with my BRK's. I installed them in 2002. A few of them were replaced by the company for a recall. I usually clean them out with compressed air when I change the batteries. Occasionally they still go off and I suspect it is tiny insects getting into the chamber. I am going to replace all of them soon with hardwired smokes that will be tied into my security/fire panel. They seem to be more reliable than the line voltage type.
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Old 11-08-2012, 07:06 PM   #4
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Kidde Smoke Alarms FALSE alarms


We had our kidde smoke and carbon monoxide alarms keep going off even after replacing the batteries, The model KN-COPE-1 and they're only put in 8 months ago. It's really annoying!!!!
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Old 07-06-2014, 02:37 AM   #5
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Kidde Smoke Alarms FALSE alarms


Same problem here and it was at exactly 3:30 am - what's up with that?!
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Old 08-16-2015, 09:24 PM   #6
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Kidde Smoke Alarms FALSE alarms


We rewired a customer's entire home, installing Kidde smoke detectors and a smoke carbon dioxide combo, all interconnected, per code. Nuisance alarms have been frequent. We have done seven callbacks, to date. This poor homeowner has been so kind, and my little company has lost so much money, that I will never use Kidde again.

First, the problem was that there were two LED light fixtures, on a dimmer, that sent a frequency the detector would not tolerate. We moved the detector circuit to a line that had no lights on it.

Second, the low battery chirp went off, in one after another, and we went back and installed new batteries, (one detector at a time went out, of course) even though the manufacture date and promised battery life were well within range.

Sixth and seventh callbacks, we pulled out offending alarms and replaced with new. The customer just called to say the alarms are going off again.
During all this time, Kidde Corporate has not responded to my request for assistance/info.

To complicate matters, now only some are going off, so now I'm worried that interconnect is no longer functioning and my customer may be at risk.
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Old 08-16-2015, 09:40 PM   #7
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Kidde Smoke Alarms FALSE alarms


Just finished reading studies by American Pediatrics concerning children and fires, which stated that people disconnect the alarms because of nuisance, and that vast majority of disconnected are ionization-type.
Photoelectric is 80% less likely to have nuisance alarms.

Finding them can be a problem and they are more expensive. I don't care. Taking all my customer's Kidde detectors and returning for a refund, as soon as I get another brand and photoelectric type.
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Old 08-16-2015, 10:18 PM   #8
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Kidde Smoke Alarms FALSE alarms


Quote:
Originally Posted by teamo View Post
I've have the same problem with my BRK's. I installed them in 2002. A few of them were replaced by the company for a recall. I usually clean them out with compressed air when I change the batteries. Occasionally they still go off and I suspect it is tiny insects getting into the chamber. I am going to replace all of them soon with hardwired smokes that will be tied into my security/fire panel. They seem to be more reliable than the line voltage type.
2002? 13 Years ago?

You are doing well if you get 10 years out of them. CO is good for 7. That is how long the sensor will last.
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Old 08-17-2015, 11:37 AM   #9
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Kidde Smoke Alarms FALSE alarms


its a faulty device is my guess. if its more than say 5yrs old then buy a new one. 5yrs or less see if maker will replace it. i have had 12 USI detectors that simply went bad back in 2008. since then i had a few of those simply go bad (wrong detection, or device failure beeping). i had one replaced by USI about 9months ago, that item just failed last month, i just got my replacement last week. mine are all CO2/fire/nat gas detector w/ interlink, but interlink is not wired (builder did not do it, not required by town code, etc).

i suspect mine are just cheap parts or bad design.
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Old 08-17-2015, 07:39 PM   #10
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Kidde Smoke Alarms FALSE alarms


Newer kidde hard wired alarms have alarm memory and a red led will remain lit on the triggering unit.

If this isn't the case, disconnect and tape off the interconnect wire on every alarm to determine which one is the culprit.

Dust a dirt can cause false alarms. Have you tried blowing the sensors out?

Moisture condensing in the sensing chamber may cause issues too - if it happens at 3-7 am, it could be related to temperature.

ignore this post, the thread is old!

Power issues may also cause problems.

You need to see if the alarm is going off at a certain time or after cooking/showering.

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