Smoke Detector Replacement Question

murphy_zone7July 17, 2012

Hi...My 6 year old hard wired smoke detectors will not stop beeping. I have replaced the batteries all five, used several methods to do this job, ie. with power, without, all at once, one at a time. I have cleaned them, I have used two different sets of new batteries, I have climbed that ladder about a 100 times! I am done! They are gonna be replaced and my question is:

If I have the skills to install a ceiling fan can I replace smoke detectors? Isn't it a matter of black to black, white to white, red to red, etc? Or is there some other connection because they are interconnected? The wiring is already there, I just want to take those down and put up new ones.

I usually hang out on other forums and this is my first "electrical" question.

Thanks in advance to anyone who can offer some advice.


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I think you can do the job.

    Bookmark   July 17, 2012 at 7:36AM
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Before you replace the system make sure you have A/C power to each jack, a bad splice will make affected units think half the power has been removed and a new system will operate the same way.

CO and CO/Smoke combos have an end of life feature but I don't think they were available six years ago.

All units in a system must be compatible with each other, usually by manufacturer.

    Bookmark   July 17, 2012 at 7:59AM
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Thank you for the responses. I bought all new units just alike. Didn't get the CO combo, with no natural gas in home don't think they are necessary....may be wrong on that.
At any rate, I called our local fire department to ask about the best units to get and if they could recommend anyone to install for me. To my surprise they said they would come and install and they did yesterday afternoon! Two guys, one a volunteer and one on county payroll. Took them about 15 minutes. I paid close attention and bus driver, you are right, I could do it, and will in my house.
Just to pass it along, check with your local fire department, they too may have a program to help you with these things. In fact he offered me three of the battery operated smoke detectors as part of their program.
And again, tax dollars at work for ME.
Thanks again for your responses.

    Bookmark   July 18, 2012 at 5:59AM
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That's a neat story Murphy. Here in Dallas, smoke alarms & wiring is a fire marshall thing. May be wrong, but I don't think NEC code deals with them.

    Bookmark   July 18, 2012 at 8:15AM
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