Trying to help out a, neighbor. We have the same in house fire detectors,
wired to the main breaker panel.
there 3 in each house, he has one that is sounding at odd times a few times
a day, I have removed the unit, and swapped it with one
of mine, I have no problem with it, but he still gets an alarm at odd times.
the wires in the unit are tight should I be looking for something down the
line to be lose or try something else, the units are not in direct sunlight.
Any help will be appreciated, he will sleep better and so will I.
Two possibilities, first, these are probably photoelectric smoke
detectors,which means that they "see" smoke,but can confuse dust with smoke.
So be sure they aren't located in a dusty area. Second, they should not be
located in certain areas, such as attics, and peaks, or corners of rooms for
that matter. If you can get a copy of the manufacturers directions, it will
guide you here. Also, they should have 9volt batteries in them as backups,
which when low should give you a periodic beep, but sometimes the units act
erratic. As far as the wiring goes. Black to black, white to white and if it
uses an interconnect, red to red
In addition to what has already been posted I suggest that if the detectors
are over ten years old, replace them. I've had customers have similar
problems with very old smoke detectors.
From the sounds of things, contrary to the way the others have read your
post, you have eliminated the detector itself as the problem by swapping it
with one from your house. The one from his house that was alarming
functions OK in your house, while the one from your house that was not
alarming, alarms in his home. What's more, it sounds like your homes are
similar, and that the alarms were probably properly installed, and at least
at one point functioning correctly.
I'm not totally familar with many alrarm systems, but perhaps there is a
battery backup that is malfuctioning.
If all this is correct, than it is an environmental matter with his home.
There is somethig in the environment that is actually causing the alarm to
trip. Dust, steam from a bathroom or kitchen, smoke from cooking are all
Are these units also CO2 detectors? If so, could he have a CO2 problem?
He should try to re-trace the activities in the house just prior to the
alarm to see what people were doing minutes prior to it tripping. Check
everything - turning on TV's, radios, lights, computers. Open or close a
window or door. Don't think any activity is beyond suspision. He may be
surprised when he sees something that cooresponds to the alarm.
If he can't confirm the problem, I'd suggest calling the fire department
(NOT 911 - just the local non-emergency number). Explain the situation to
them and they might come out with more sensitive equiptment to check out the
house, and tell what kind of particulate is causing the alarm.
Bottom line is - take it serious! Check things out with each alarm until
the problem is resolved. One of these 'false alarms' may just turn out NOT
to be false!
Vacuum your alarms regularly to pevent dust buildup; as in other post
insects can be attracted to heat inside mains alarms.
Vacuum through the air entry fins not grill over sounder.
On some makes eg Kidde these are round the side not on front.
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