A flashing green light is a normal part of the power up cycle. Any time there is a power outage, brownout, surge or other problem with the power, the alarm goes through a power up cycle. The flashing on your plug-in carbon monoxide alarm should stop after 5 minutes, then the light will stay a steady green.
Common CO Detector Indicator Lights and Their Meanings
Meaning: The LED lights blinks green per minutes usually indicates that the carbon monoxide detector is powered on and functioning correctly.
If green light is not on its not getting power from the wire. Something is probably mis wired.
These simple detectors are pieces of cardboard with a small orange-colored circle in the middle. If there is a high-level of carbon monoxide in the vicinity, the circle changes color from orange to black.
Call for Help: If you cannot identify a simple reason for the alarm (like a low battery) or if you suspect elevated levels of CO, call emergency services or the fire department immediately.
First Alert CO600 Plug-In Carbon Monoxide Detector
A: That is the power light. It is normally solid red and flashes when there is a problem.
4 beeps and a pause: This means that there is carbon monoxide in the air and you should seek fresh air immediately and call 911. 1 beep every minute: This means that the alarm has low batteries and you should replace them. 3 beeps every minute: This means the alarm has encountered a malfunction and needs replacement.
Generally, a solid green light on your smoke detector means that it's working properly. If the green light goes off, you know that there's no power going to the system.
Several factors can contribute to unhealthy levels of carbon monoxide in your home, even when your detector reads zero. Sensitivity and Calibration Issues: Most carbon monoxide detectors are designed to alert you only when CO levels reach a certain threshold, typically 70 parts per million (ppm) over a short period.
Green and red LED lights that indicate normal operation and alarm status o Green Light: The green LED will flash every 30 seconds to indicate the unit is operating properly.
Typically, colored lights on your home alarm system often indicate similar messages such as: Solid or blinking green may indicate that your system is currently running without issue.
Replace or Check the Battery
Usually, the annoying beeping caused by a carbon monoxide detector is to alert you about a malfunctioning battery. If the old battery requires changing or it's slipped out of place, the unit will chirp. Try reinstalling the battery or replacing it, and then reset your device.
How to test your carbon monoxide detectors to ensure they are working properly? To test your carbon monoxide detectors, press and hold the test button on the alarm. The detector will sound 4 beeps, a pause, then 4 beeps for 5-6 seconds. Refer to the user manual for your specific model.
Low level: 50 PPM and less. Mid-level: Between 51 PPM and 100 PPM. High level: Greater than 101 PPM if no one is experiencing symptoms. Dangerous level: Greater than 101 PPM if someone is experiencing symptoms.
Each time the unit is first powered up, the CO sensor requires a ten (10) minute initial warm-up period to clean the sensor element and achieve stabilization. The GREEN LED indicator will flash on and off during the 10 minute warm-up period. This unit cannot go into a CO alarm during the warm-up period.
Green Light: The green LED will be lit continuously or flash every 30 seconds to indicate the unit is operating properly. In Hush® mode the LED blinks every 2 seconds and once per second if it is the initiating alarm.
A continuous green flash indicates your CO alarm is activated and protecting your home. When low ambient light levels are detected at night time, the alarm will lower the light output.
The most common symptoms of CO poisoning are headache, dizziness, weakness, upset stomach, vomiting, chest pain, and confusion. CO symptoms are often described as “flu-like.” If you breathe in a lot of CO, it can make you pass out or kill you.
In most areas, the fire department does not charge to respond to carbon monoxide alarms or to check for the presence of CO in a residence. However, policies can vary depending on the jurisdiction or specific fire department. It's always a good idea to contact your local fire department for specifics on their policies.