What is carbon monoxide?
Carbon Monoxide (CO) is a colorless, odorless and tasteless, poisonous gas that can
be fatal when inhaled.
It's sometimes called the "silent killer." CO inhibits the blood's capacity to carry oxygen.
CO can be produced when burning any fuel, such as gasoline, propane, natural gas, oil
and wood. CO is a by-product of incomplete combustion. If you have re, you have CO.
How many carbon monoxide alarms do I need?
Carbon monoxide alarms should be installed on every level of the home and in
sleeping areas.
More is better! If you only have one CO alarm, you should put it in the hallway outside
of the bedrooms. You are most vulnerable when you're sleeping, and you need to be
able to hear the alarm if it sounds.
Place all alarms at least 15 feet away from fuel-burning appliances, and make sure noth-
ing is covering or obstructing the unit.
Why is my carbon monoxide alarm beeping or chirping?
Several things may be causing your alarm(s) to sound or chirp. It's important to under-
stand the different audible signals from your alarm.
Continuous Four-Beep Alarm Pattern
When the carbon monoxide (CO) alarm senses a dangerous level of carbon monoxide,
the unit will emit a loud alarm pattern. The alarm pattern is four short beeps – followed
by ve seconds of silence – followed by four short beeps.*
Your alarm may have detected carbon monoxide. Make sure that you know how
to respond to a CO emergency.
You may be experiencing a nuisance alarm. Follow the procedure for nuisance
alarms.
*NOTE: When the unit is disconnected from the 120V power supply and on battery
backup, the alarm pattern will continue for the rst ve minutes after detecting carbon
monoxide and then the cycle will repeat every minute.
Carbon Monoxide Troubleshooting/FAQ Guide
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