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smoke detector making beeping noise - didn't see anywhere to replace battery

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  • Mar 7th, 2013 12:42 pm
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Deal Fanatic
Dec 11, 2003
7709 posts
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smoke detector making beeping noise - didn't see anywhere to replace battery

MY alarm is making a short beep noise every hour (randomly) or so. I Google a bit and the common solution is to replace the battery. However, I cannot find any battery to replace (it is wired to the house). So what can I do here?

Edit: I think this is the one: American Sensor

http://www.aartech.ca/cos2010-american- ... -120v.html
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Dec 16, 2007
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Some wired alarms have a battery backup in which case the battery door could either be in the front or the back

Or they could be past their recommended replacement date, or could be indicating that they need to be cleaned
[OP]
Deal Fanatic
Dec 11, 2003
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I think I found the model, but it didn't say there is a battery backup.
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Dec 16, 2007
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elty wrote:
Jun 9th, 2012 10:54 pm
I think I found the model, but it didn't say there is a battery backup.

Then it either needs to be replaced, or cleaned
Deal Addict
Mar 21, 2006
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Burlington, Ontario
Smoke detector. Not fire alarm.
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Oct 6, 2005
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elty wrote:
Jun 9th, 2012 10:54 pm
I think I found the model, but it didn't say there is a battery backup.

Does your model have a sealed backup battery? I think some have non-replaceable batteries?

Anyways a new fire alarm is like 15.00 for a basic model, maybe less aggravation just to buy a new one.
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Oct 6, 2007
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There's a 10 year lifespan on hard wired smoke detectors. If it's been 10 years, replace it. If it's younger than 10 years, try to vacuum it out, as dust will set them off, as will small insects.
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Mar 6, 2007
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smacd wrote:
Jun 10th, 2012 1:49 am
There's a 10 year lifespan on hard wired smoke detectors. If it's been 10 years, replace it. If it's younger than 10 years, try to vacuum it out, as dust will set them off, as will small insects.

^^ yep. My smoke and carbon monoxide detectors all have signs on them that indicate 10 year limits from the date of manufacture. and there are even stickers on it as well in case you don't have the batteries in place to indicate it. Now.. I have to go buy NG detectors and stuff that into the basement too..hopefully i'll be able to hear it if it ever goes off...
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Mar 28, 2008
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BuildingHomes wrote:
Jun 9th, 2012 11:13 pm
Smoke detector. Not fire alarm.

Smoke alarm, not detector. A smoke detector has a sensor that detects smoke that has to be connected to a central control for power, signal processing, and to activate notification devices. Used when you have a "fire alarm panel" and separate horns/strobes.

Smoke alarm is a stand-alone unit that has a sensor, control, and notification within the unit with the power supply at the unit.

Otherwise, the other posts pretty much covered it. Check the power supply (for a battery and wiring), clean, etc. Otherwise, it needs to be replaced as it's not a serviceable item. Humidity could make it act up as well.
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Nov 2, 2005
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Maybe one of your other ones has a battery backup? I have a few hard wired together. The one in the kitchen has a battery backup and when the battery is on it's way out they all start to make the occasional short beep.
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dirtmover wrote:
Jun 10th, 2012 9:47 am
Maybe one of your other ones has a battery backup? I have a few hard wired together. The one in the kitchen has a battery backup and when the battery is on it's way out they all start to make the occasional short beep.

^+1
[OP]
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Dec 11, 2003
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Alarm is like 4 years old. Tried to clean it with vacuum and doesn't work. No one ever do any wiring work so I guess wiring won't just suddenly fail.

I guess my only option is to replace it? Does every smoke alarm in the house must be the same brand?

Also, does the wiring and mount for every alarm is the same? or I am better off with the same unit just for easy installation.
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May 28, 2012
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The wired alarms have to be the same (from our experience, anyway).
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May 11, 2009
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Had this happen to both my smoke alarm and carbon monoxide detector, also american sensor branded units. Both failed prematurely, but when I called the warranty number it was out of service. Ended up buying new ones after having the batteries out for a few months :facepalm:
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elty wrote:
Jun 22nd, 2012 10:54 pm
Alarm is like 4 years old. Tried to clean it with vacuum and doesn't work. No one ever do any wiring work so I guess wiring won't just suddenly fail.

I guess my only option is to replace it? Does every smoke alarm in the house must be the same brand?

Also, does the wiring and mount for every alarm is the same? or I am better off with the same unit just for easy installation.
If they are interconnected then generally they have to be the same brand. You can usually use different models within the brand (i.e. Kiddie's ionization, photoelectric, and smoke/CO).

The wiring connector and mount is generally different as well.
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