Why does my carbon monoxide detector’s green light stay on?

On my carbon monoxide detector, the green light stays on all the time. What does this mean?

Melanie Mergen · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Carbon monoxide detectors are essential to keeping you safe, so it’s important to know how it works! Why your carbon monoxide detector’s green light stays on depends on the brand and model you’re using.
In some cases, it can merely mean your detector is on and working properly. In others, a steady or blinking green light on a
carbon monoxide detector
can mean it’s detected a** low-level presence of carbon monoxide**. If the presence increased, it would cause the alarm to sound.
It could also mean it’s time to replace the battery, especially if it’s also chirping.
It’s a good idea to check the manual for the specific detector you’re using to be sure about what it’s trying to tell you.
Carbon monoxide exposure is deadly, so if you’re not sure whether your carbon monoxide detector is giving you a false alarm, you should evacuate your home and call 911.
Your carbon monoxide detector is designed to keep you and your household safe—your insurance policy should be, too. With
, you can search for home, renters, and
car insurance
quotes from top insurance providers to find a policy that gives you the protection you need at the right price.
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Jerry partners with more than 50 insurance companies, but our content is independently researched, written, and fact-checked by our team of editors and agents. We aren’t paid for reviews or other content.

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