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Posted by GSRS on November 6, 2007, 10:36 pm
These are new detectors that replaced units 10+ years old. They go into
"latching" mode which is not Alarm. The offending unit sounds once and led
begins blinking. First Alert customer service says its an electrical
problem but I never had the problem with the old units. I've read these new
units are sensitive to electic company substation switching which may
interrupt the power for a millisecond but its enough to Latch the unit.
I told them my young child is not all too happy, on the verge of being
frightened. I started a call history so they said they'll make good. I
need to report reoccurrence (great). Then call them back and see where to
go from there.
RP
>> Had some BRK 120v detectors in my house for 10yrs. Had two units that
>> went
>> bad in that they would go into full alarm in the middle of the night.
>> Since
>> detectors are rated for 10yrs I replaced all six with First Alert
>> SA9120BCN.
>> Now my new problem is the detectors randomly sound at various times of
>> the
>> day. Just one blast from single units. I've done some reading on line
>> and
>> have found that this is not an alarm but sensitivity to electric company
>> sub
>> station switching. Going to calll First Alert tomorrow but in short
>> these
>> units need to come down, they are annoying and scaring my child.
>>
>> What's a good replacement 120volt with dc backup? I want to again link
>> them
>> all using existing 3 wire system. I was looking at the Kidde PI2000.
>> This
>> is a pain in the you know what.
>>
>> Thanks,
>> Russ
>
> Hi Russ,
>
> I have Kidde alarms. However I also get false alarms from time to
> time. One night the alarm went off. Ran around looking for smoke and
> fire. Zip nothing. I then looked for an indicator to see which alarm
> when off. On one with the flashing led, I noticed a spider scurrying
> away.
>
> It may be that all along your alarms were fine. Do you have high
> humidity, dust, or bugs. These can cause false alarms. If the alarm is
> seemingly random, and stops after a bit, I would say it may be bugs
> like spiders.
>
> Best, Mike.
>
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