AboutFred P. Wessells Expertise I can provide advice regarding most aspects of home and personal security & safety, as well as just about anything related to computer security. Lighting to locks to windows and more. I DO NOT WANT QUESTIONS ON ALARM SYSTEMS, other than common smoke/carbon monoxide detectors. This is not my area of expertise. How to keep from needing an alarm system is more in my area!
Experience I have worked in the industry for 18 years as a security officer, feature writer and editor for a national security magazine and as a security consultant.
Publications Security Technology & Design magazine, Access Control magazine, Locksmith Ledger magazine, several community newspapers and legal newsletters.
Question i have a first alert smoke detector and it just goes off and won't shut off unless you put a fan up to it, and out of the 5 detectors it is the only one with a blinking green light and on the others have the green light stays on is the smoke detector just bad or do i have a bigger problem?
Answer First, is it hardwired or stand-alone battery powered? Not every city requires hardwired alarms. If it's a stand-alone battery-powered detector, either the battery is bad or the detector has died on you. If it's hardwired, then I'm surprised that all the alarms don't go off at the same time--that's what usually occurs. That would indicate to me that the detector itself is bad.
Bottom line, whether hardwired or stand-alone, I'd bet on the detector needing to be replaced.