The answer to 'why is my carbon monoxide detector circuit overload' is that there is likely an issue with the electrical wiring or components of the carbon monoxide detector. This could be caused by a short circuit, loose connection, or other electrical problem that is causing the detector to draw too much current, resulting in an overload.
Some common symptoms of a carbon monoxide detector circuit overload include the detector not powering on, the alarm sounding erratically, or the detector repeatedly tripping your home's circuit breaker. To resolve this issue, you'll need to troubleshoot the electrical system and components of the detector to identify and fix the root cause of the overload.