How to Reset a Carbon Monoxide Alarm

Here's how to reset your carbon monoxide detector: Find the Reset button. It's on the front panel, though the exact location and size of the button vary by brand and model. Press and hold the Reset button for 5 to 10 seconds. Release the Reset button, and listen for a beep. Some models may also flash a light.

Keeping your home and family safe from the dangers of carbon monoxide (CO) is crucial. Although carbon monoxide detectors are easy to install and use, resetting them can be a bit of a challenge. In this article, we will discuss how to reset a carbon monoxide alarm.

Resetting a carbon monoxide detector is necessary after replacing the battery or when the detector starts beeping every minute. To reset your carbon monoxide detector, locate the reset button on the front panel of the device. Although the exact location and size of the button vary by brand and model, it is usually on the front panel. Hold down the reset button for 5 to 10 seconds, then release it and listen for a beep. Some models may also flash a light.

If your carbon monoxide detector is beeping every minute, it is likely that the detector has detected carbon monoxide in the environment. In this case, the detector can only be reset by placing it in a carbon monoxide-free environment. After resetting, the device will beep or flash a light to indicate that it is working correctly.

To turn off a low battery carbon monoxide detector, press the reset button and replace the battery. Most carbon monoxide detectors beep every 30 seconds if the battery is low. If the detector beeps five times every minute, it means it has reached the end of its life and needs to be replaced.

Now that you know how to reset a carbon monoxide detector, it is essential to understand that resetting it is safe as long as the device hasn’t reached the end of its operational life. After resetting, fresh air dilutes the carbon monoxide, and the alarm might go silent. However, it is crucial to remember that the source of the CO is likely still present, and the levels can build up again.

In case you hear your carbon monoxide detector beeping, do not ignore the alarm, leave immediately and call 9-1-1. Exposure to carbon monoxide can quickly lead to health risks, including heart disease or fatality.

In conclusion, resetting a carbon monoxide detector is essential for the safety of your home and family. By following the steps outlined in this article, you can reset your carbon monoxide detector and keep your home safe.


How do I get my carbon monoxide detector to stop beeping?
Reset your Carbon Monoxide Detector Make sure a battery is connected, or the power is on before starting the reset process. First, look for a button called 'silence' or 'reset'. Hold this button down for 10 or more seconds. Release the button, and the LED lights should blink or turn back on.
Why does my carbon monoxide detector keep beeping after I changed the battery?
End-of-life warning – This means your device has reached the maximum span of its working life. You'll know it's an end-of-life warning if you have tried replacing the battery but the consistent chirping continues. You need to replace the smoke detector as soon as possible.
Will carbon monoxide detector go off again after reset?
Instructions may vary so check your manual. Use the Reset button whenever the alarm is sounding or when you change the batteries. If the alarm starts again after pressing the Reset button, get everyone in the household to fresh air and call emergency services.
How do I stop my carbon monoxide detector beeping every 30 seconds?
Consistent Chirping End of Life Warning – Seven years after initial power up, a Kidde CO alarm will begin chirping every 30 seconds. The chirp will not stop until the unit is powered off, and it's vital to replace the carbon monoxide alarm immediately since it can't detect CO when it enters end-of-life mode.