Smoke Detectors
Posted on Sunday, January 10, 2010 in Security Systems
Why did my smoke detectors go off for no reason?
The other night, all of my smoke detectors went off for no apparent reason. Then they would stop, and go off again. It did this 4 times within 15 minutes. There was no sign of fire or smoke, so I'm baffled. Any ideas?
This sounds like you have a *hard wired* smoke detector system, where all the detectors *communicate* with each other. If one senses smoke (or is fooled into thinking there is smoke) they ALL go off. They are both simple in what they do, yet can be quite complicated in how they do it, and can be fooled in any number of ways into *seeing* something other than smoke AS smoke. Chances are, there is nothing wrong with them and that one of them either saw a very small amount of smoke or was fooled by something other than smoke. I've seen insects set them off, and also smoke so minor you almost couldn't see it yourself.
There is a lot more information about the type I believe you have in the first link, and even more information about all types in the second one. If you are a curious type, have a look.
Al
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 Kidde Smart 2 in 1 Voice Alarm Smoke Carbon Monoxide $29.99 Time Remaining: 3h 32m Buy It Now for only: $29.99 |
 EUC white smoke detector fire alarm $1.99 Time Remaining: 4h 20m |
 10x ESI MC30U 3 Optical Smoke Detector Without Bases 138 308 Obs ft 100mA $14.99 Time Remaining: 4h 44m |
 KIDDE FIREX I4618 SMOKE ALARM W BATTERY BACKUP 12 PACK $119.95 Time Remaining: 5h 46m Buy It Now for only: $119.95 |
 Kidde i12020 Basic Hardwire Smoke Alarm with Test Button BRAND NEW $15.95 Time Remaining: 5h 46m Buy It Now for only: $15.95 |
 Home Security System Cordless Smoke Detector Fire Alarm $1.00 Time Remaining: 5h 49m Buy It Now for only: $1.00 |
 Kidde KN COSM B Battery Operated Carbon Monoxide NEW $30.25 Time Remaining: 6h Buy It Now for only: $30.25 |
 Ademco 5808 wireless smoke detector $30.00 Time Remaining: 6h 20m |
 Code One Battery Operated SMOKE ALARM NEW in Package $4.99 Time Remaining: 6h 23m |
 Two 2 Ademco 5818 wireless recessed door transmitters $50.00 Time Remaining: 6h 30m |
 GE TX 6010 01 1 GE NX491NT Simon 3 Simon XT Wireless Crystal Smoke Detector $40.00 Time Remaining: 6h 39m |
 First Alert Sco7cn Smoke Carbon Monoxide Detector $49.95 Time Remaining: 6h 45m Buy It Now for only: $49.95 |
 Kidde SL177i 120V Dual Mode Strobe Light Hear Impaired $71.50 Time Remaining: 7h 26m Buy It Now for only: $71.50 |
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 Kidde HD135F 120V Heat Detector with 9V Battery Back Up $24.98 Time Remaining: 7h 26m Buy It Now for only: $24.98 |
 Kidde CO120X 120V Carbon Monoxide Relay Module $19.48 Time Remaining: 7h 26m Buy It Now for only: $19.48 |
 Kidde 442020 Kidde Radon Detector Kit $14.98 Time Remaining: 7h 26m Buy It Now for only: $14.98 |
 Wireless Smoke Gas Leak Detector Alarm Sensor 1068 $5.99 Time Remaining: 7h 34m Buy It Now for only: $5.99 |
 Home House Security Wireless Smoke Detector Fire Alarm $1.00 Time Remaining: 8h 5m Buy It Now for only: $1.00 |
 TX 6010 01 1 GE Wireless Smoke Detector $29.99 Time Remaining: 8h 22m Buy It Now for only: $39.99 |
 Lot of 6 Smoke and 2 Heat Wireless Detectors enough to cover a 2800sf House $875.00 Time Remaining: 8h 27m |
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 electric 120vac wired in fire alarm detector single or multiple USI USA made UL $9.99 (1 Bid) Time Remaining: 10h 3m |
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 Ademco 5890 Wireless motion detector $15.00 Time Remaining: 10h 57m |
 Ademco 5890 Wireless motion detector $15.00 Time Remaining: 10h 58m |
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 Ademco 998 PIR motion detector $5.99 (1 Bid) Time Remaining: 11h 9m |
 Koolatron 12 Volt Drive n Grill $29.99 Time Remaining: 11h 12m Buy It Now for only: $29.99 |
 Ademco 5816MN mini wireless door window transmitter $15.99 Time Remaining: 11h 14m |
 Ademco 5816MN mini wireless door window transmitter $15.99 Time Remaining: 11h 14m |
 1 x Smoke Detectors Fire Alarm Ionisation Battery Inc $10.73 Time Remaining: 11h 30m Buy It Now for only: $10.73 |
 NEW KIDDE HARDWIRE SMOKE DETECTOR W BATTERY BACK UP $18.99 Time Remaining: 12h 8m Buy It Now for only: $18.99 |
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 Wheelock 15 75CD 24V Horn and Strobe 15 75 on Axis Strobe Candela BRAND NEW $12.00 Time Remaining: 12h 14m Buy It Now for only: $12.00 |
 Kidde Twin Pack Smoke Alarm Detector Battery Powered 0915D 18 $16.99 Time Remaining: 12h 16m |
 First Alert Smoke Fire Alarm 120V AC Battery Backup SA773CN NEW $31.95 Time Remaining: 12h 42m Buy It Now for only: $31.95 |
 FIRST ALERT FG200B2 Family Gard Battery Operated Ionization Smoke Alarm 2 Pack $6.99 Time Remaining: 12h 52m Buy It Now for only: $6.99 |
 Kidsmart Vocal Smoke Detector $18.99 Time Remaining: 13h 32m Buy It Now for only: $29.99 |
 Home Security System Cordless Smoke Detector Fire Alarm $1.00 Time Remaining: 13h 37m Buy It Now for only: $1.00 |
 Ademco 5808LST Wireless Smoke Heat Detector w Sounder $62.95 Time Remaining: 13h 55m Buy It Now for only: $62.95 |
 Ademco 5605 Smoke Detector Base Only $49.95 Time Remaining: 13h 59m Buy It Now for only: $49.95 |
 New DC12V Infrared PIR Sensor Alarm Infrare Motion Detector Detecting 12m 818 1 $2.25 (5 Bids) Time Remaining: 15h 5m |
 First Alert SA511CN2 3ST ONELINK Battery Operated Smoke Alarm Voice Location $22.50 (3 Bids) Time Remaining: 15h 6m |
 Gentex Series 8000 Photoelectric Smoke Detector $20.00 Time Remaining: 15h 12m Buy It Now for only: $24.99 |
 First Alert Smoke Carbon Monoxide CO Detector Alarm $38.00 Time Remaining: 15h 16m Buy It Now for only: $38.00 |
 5808W3 HONEYWELL WIRELESS SMOKE DETECTOR $25.00 Time Remaining: 15h 19m Buy It Now for only: $25.00 |
 Funtech Babys Room Smoke Alarm Nursery Design fire dog Dalmation Kids $9.99 Time Remaining: 15h 43m |
 Kidde Smoke Alarm with front loading battery $2.99 Time Remaining: 16h Buy It Now for only: $7.00 |
 Lot of 2 NEW Ademco Honeywell 5808W3 Wireless Smoke Heat Detector W Sounder $70.01 (6 Bids) Time Remaining: 16h 29m |
 NEW KIDDE Smoke Carbon Monoxide Detector Voice Talking Alarm Nighthawk Tech $39.99 Time Remaining: 16h 58m |
 GE ITI NEW IN BOX SIMON XT CONCORD TX6010 01 1 SMOKE HEAT DETECTOR NX 491NT $40.00 Time Remaining: 17h |
 First Alert ONELINK Linked Wireless Smoke Alarm 2 Pack $94.99 Time Remaining: 17h 51m Buy It Now for only: $94.99 |
 Wireless Fire Smoke Detector Alarm Home Security Sytem $8.98 Time Remaining: 18h 8m Buy It Now for only: $8.98 |
 Smoke Detector Tester Spray HO 25S Smoke Check $12.95 Time Remaining: 18h 19m Buy It Now for only: $12.95 |
 USI 3204 2P Photoelectric Smoke Fire Alarm 120 VAC Wired In MISSING WIRES $19.99 Time Remaining: 18h 50m Buy It Now for only: $19.99 |
 Dual Function Photoelectric Cordless Smoke Fire Detector Alarm Security System $8.99 Time Remaining: 19h 22m |
 Kidde carbon monoxide and smoke alarm combo pack NEW i9040 $34.95 Time Remaining: 20h 19m Buy It Now for only: $34.95 |
 Home House Security Wireless Smoke Detector Fire Alarm $1.00 Time Remaining: 20h 21m Buy It Now for only: $1.00 |
 Home House Security Wireless Smoke Detector Fire Alarm $1.00 Time Remaining: 20h 34m Buy It Now for only: $1.00 |
 GENTEX 8100Y 120V PHOTOELECTRIC SMOKE DETECTOR $49.00 Time Remaining: 21h 11m Buy It Now for only: $49.00 |
 BRK 9120 SMOKE ALARM AC POWERED 6PK BRAND NEW $59.99 Time Remaining: 21h 37m Buy It Now for only: $59.99 |
 6 PACK Kidde Silhouette KN SMFM i 120V Smoke Alarm $154.00 Time Remaining: 21h 54m Buy It Now for only: $154.00 |
 Single Station Smoke Alarm by Univeral Security Instruments Model SS 770 $0.99 Time Remaining: 23h 14m Buy It Now for only: $7.50 |
 Vintage Westclox Smoke Alarm Detector 83079 NEW IN BOX Rare Old Hard 2 Find $75.00 Time Remaining: 23h 21m Buy It Now for only: $75.00 |
 KIDDE FIRE SENTRY Micro Profile i9040 Smoke Detector Brand New in Factory Box $1.54 (3 Bids) Time Remaining: 1d 12m |
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