ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Photocell
by twh. 01/22/18 05:06 PM
AreMetal Ladders Ever OK For Electrical Work?
by gfretwell. 01/22/18 01:15 AM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 26 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Q. About CO Alarms and Smoke Alarms #28651
08/26/03 10:35 AM
08/26/03 10:35 AM
T
ThinkGood  Offline OP
Member
Joined: Aug 2002
Posts: 1,081
Milwaukee, WI
Early this morning, I heard fire engines nearby, and then once I felt the rumbling (the FD has some big trucks around here) and saw the blinking lights, I knew they were on my block. I went out to my neighbor's house to see what was going on.

Turns out, the neighbor's carbon monoxide detector had sounded. The detector was upstairs in the main bedroom. Everyone evacuated and waited outside. The fire department responded--said they don't have a CO meter, and the fact that it was the upstairs detector while no appliances were running (no heat on, of course) means that it must be a faulty CO alarm.

The fire department had the gas company notified to respond, as a precaution.

Something odd, though, is that while we were waiting for the gas company, his upstairs smoke alarm went off. It was not the "chirp" of a low battery, but the full alarm. I told him to call 9-1-1 again. 9-1-1 told him to wait for the gas company, that there was no need for any further response. (There was no sign of fire and no smell of smoke.)

The gas company responded--the results were negative for CO.

His attic fan doesn't work, there were no appliances running (except for air conditioner window units), nobody was cooking, etc. What would cause both a CO alarm and a separate smoke alarm to sound?

One thing that my neighbor said to me that (to me) can possibly be an explanation is that he woke up early (not realizing he didn't need to be up yet) and took a shower. Shortly after, the CO alarm sounded. Could steam from a shower cause a false alarm?

Work Gear for Electricians and the Trades
Re: Q. About CO Alarms and Smoke Alarms #28652
08/26/03 01:26 PM
08/26/03 01:26 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
TG,

Steam from the shower sets my smokes off if someone forgets to turn on the Bathroom exhaust fan. Smokes are in hallway right outside Bathroom door.

Bill

Re: Q. About CO Alarms and Smoke Alarms #28653
08/26/03 04:10 PM
08/26/03 04:10 PM
J
JCooper  Offline
Member
Joined: Dec 2002
Posts: 228
Kendall Park, NJ USA
CO detectors are known for false alarms, better to have one that works too good than one that goes off when it is too late. It could have also been a low battery alarm, most people call the FD when the low battery alarm goes off because they think it is in alarm. As for the smoke alarm it could have been dirty and happened to go off today, when you change the batteries you should also blow some compressed air into the chamber to clean it out, dust is a particle and will set off an alarm if there is enough of it.

Re: Q. About CO Alarms and Smoke Alarms #28654
08/26/03 05:28 PM
08/26/03 05:28 PM
S
Sandro  Offline
Member
Joined: Dec 2001
Posts: 444
Stoney Creek, ON, Canada
As silly as it sounds, try vacuuming it. Excess dust build up and spiderwebs/insects etc, will cause false alarms.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
NickD
NickD
Amish Country, PA
Posts: 46
Joined: March 2013
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
sparky 15
Potseal 15
Popular Topics(Views)
243,595 Are you busy
180,393 Re: Forum
170,863 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.021s Queries: 14 (0.008s) Memory: 0.9590 MB (Peak: 1.0883 MB) Zlib enabled. Server Time: 2018-01-23 00:05:42 UTC