Indication of alarm malfunctioning
- Audible Signal: BEEP EVERY 30 SECONDS
Visual Signal: LED Indicator Light alternating RED / GREEN - Test CO Sensor. Use a can of SAFE-T-ALERT CO test gas to test the 400 PPM calibration point using the test chamber included with can. Consider also using a handheld CO monitor to be sure.
- DO NOT ATTEMPT TO GENERATE CARBON MONOXIDE TO TEST THE ALARM.
IMPORTANT – If the alarm does not test properly, replace it immediately. - Review CO alarm testing procedures with boaters.
Potential Sources of Carbon Monoxide
- Engine, and generator exhaust
- Portable grills, generators, and space heaters
- Camp fires, gas stoves, and ovens
- Other boats
- Defective engine
- Exhaust system
CO Facts
- CO is odorless, colorless, and tasteless.
- A CO leak cannot be smelled.
- The initial symptoms of low to moderate CO poisoning are similar to the flu (but without the fever) and include headache, fatigue, shortness of breath, nausea, and dizziness.
- Carbon Monoxide poisoning can lead to death.
ABYC has published an updated standard, A-24 Carbon Monoxide Detection Systems.
The standard now requires CO alarms on all boats with an enclosed accommodation compartment manufactured after July 31, 2016