Created 03/06/2023 at 04:37 PM

Carbon monoxide (CO) is a colorless, odorless gas that can cause severe health problems, including death. CO is a byproduct of combustion from gas-powered appliances, such as furnaces, water heaters, and stoves. The only way to detect CO in your home is through a carbon monoxide detector. In this article, we will discuss how to check your carbon monoxide detectors to ensure that they are functioning correctly.

Step 1: Check the Power Source

The first step in checking your carbon monoxide detector is to ensure that it has a power source. Most detectors use batteries or are hard-wired into your home's electrical system. If your detector uses batteries, check to make sure that they are not low or dead. Replace the batteries if necessary. If your detector is hard-wired, make sure that it is properly connected to your home's electrical system.

Step 2: Test the Detector

Once you have confirmed that your detector has power, it's time to test it. Most carbon monoxide detectors have a "test" button that you can press to check if the detector is working correctly. Press the button and wait for the detector to sound an alarm. If the alarm sounds, the detector is functioning correctly. If the detector does not sound an alarm, replace it immediately.

Step 3: Check the Expiration Date

Carbon monoxide detectors have an expiration date, usually between 5-7 years from the date of manufacture. Check the back of your detector to find the expiration date. If your detector has expired, replace it immediately.

Step 4: Check the Location

The location of your carbon monoxide detector is essential. It should be placed on every level of your home, including the basement and near any gas-powered appliances. Additionally, detectors should be placed at least 15 feet away from fuel-burning appliances and not in areas with high humidity or moisture.


Carbon monoxide detectors are essential in protecting you and your family from the harmful effects of carbon monoxide poisoning. By following these simple steps, you can ensure that your detectors are functioning correctly and that your home is safe from this dangerous gas. Remember to check your detectors regularly and replace them if they are expired or not working correctly.