The model has been discontinued,


What model is it? The green light usually indicates that AC power is
present. It should be a steady green light.......usually. The red
light usually indicates: 1) of unit self testing ( if flashes every
minute or so).... this is normal, and/or 2) if will flash every second
or so.......with also the audible alarm sounding- this indicates that
the unit is sensing a smoke condition.

If unit beeps every once in a while...............then this indicates
that the internal battery should be replaced. It is usually a 9 volt
battery.

I have attached a link to an operators manual for Firex smoke
alarms.............your model, if not there, should be very similiar.
This should help you out. You will have to zoom in to 100% in order to
read it. Hope it helps.

http://www.icca.invensys.com/interna...s/111-276C.pdf

Dean