The answer to 'carbon monoxide detector sparking' is that a sparking carbon monoxide (CO) detector is usually a sign of an electrical issue that requires immediate attention. This could be caused by a faulty detector, wiring problems, or a larger electrical system malfunction. Sparking is a serious safety concern and should not be ignored.
If your CO detector is sparking, the first step is to turn off power to the device and unplug it from the electrical outlet. This will stop the sparking and prevent potential fire hazards. Next, you'll want to inspect the detector and wiring for any visible damage or loose connections. If you don't feel comfortable troubleshooting the issue yourself, it's best to call a licensed electrician to diagnose and repair the problem.