The answer to 'why is my carbon monoxide detector' is that there could be several common causes for a malfunctioning carbon monoxide (CO) detector. CO detectors are designed to alert you to the presence of this odorless, colorless gas that can be deadly in high concentrations. If your CO detector is going off, it could indicate a real threat that needs to be addressed promptly.
Some of the most common reasons a CO detector may not be working properly include a dead or low battery, a sensor failure, or the detector being placed in an incorrect location. Occasionally, false alarms can also be triggered by household chemicals, aerosols, or even cooking fumes. If your CO detector is sounding, it's important to take it seriously and investigate the potential source right away.