My smoke alarm is emitting a chirping sound. What is the problem with it?
A. The chirping sound indicates the battery may need to be replaced. Batteries should be changed at least once a year. It is wise to do this when you change the clocks back each fall. If changing the batteries does not stop the chirping sound, try vacuuming the alarm. This should be done twice a year. If the problem persists, replace the alarm.