Servicing It is a yellow LED that flashes to indicate that a smoke detector involves cleaning or replacement as a consequence of an invalid chamber reading or excessive drift. Website page 105: Alarm Operation Shut/span> You can not entry this web page as this item is just not offered with https://remingtoni2233.bloggazzo.com/35358702/the-smart-trick-of-Αλυσοπρίονα-that-no-one-is-discussing