by 48Rob » Sat Dec 01, 2012 6:35 pm
Is it wired together with other detectors?
One of them may be bad.
Could be a bad battery (even if new)
If battery is good, remove and reinstall, then test, this resets the alarm.
Should be a trouble shooting guide in the installation manual, or go online to the manufacturers Web site.
Rob
Waiting for "someday" will leave you on your deathbed wondering why you didn't just rearrange your priorities and enjoy the time you had, instead of waiting for a "better" time to come along...