The answer to 'why is my carbon monoxide detector dimming lights' is that a malfunctioning carbon monoxide (CO) detector can sometimes cause lights to dim or flicker. This can happen when the detector is drawing too much power from the electrical system, causing a voltage drop that affects the lighting.
Common causes include a faulty CO sensor, a problem with the detector's power supply, or an issue with the wiring. It's important to address this issue promptly, as a malfunctioning CO detector can put your home and family at risk.