What are some common questions people have about wired-in carbon monoxide alarms?
Q: Why must I disconnect AC power before changing batteries?
A: In case the electrician has mis-wired the AC voltages, a shock hazard might exist. By disconnecting the AC power, it will ensure that the battery can be changed safely.
Q: What does it mean when the red light flashes approximately once every minute?
A: The flashing red light gives a visual indication that the smoke alarm is functioning properly. It also indicates a working battery is connected to the smoke alarm.
Q: Why does my CO alarm "chirp" approximately once every minute?
A: The CO alarm chirps to indicate a "low battery" condition, meaning the battery needs to be replaced. Battery powered CO alarms will chirp a minimum of 30 days before the battery completely loses power.
• AC powered CO alarms with battery backup will chirp indefinitely (assuming AC power is present) if battery power is low (or battery is removed) until a fresh battery is installed. Approved replacement batteries are listed on the back of each CO alarm.
Q: What does it mean when the red light flashes approximately once every minute?
A: On models containing a red light, the flashing red light gives a visual indication that the CO alarm is functioning properly. It also indicates a live battery is connected to the CO alarm.
Q: What does the continuous green light indicate?
A: It indicates that AC power is operating the smoke alarm.