The answer to 'carbon monoxide detector dimming lights' is that a carbon monoxide (CO) detector can sometimes cause dimming or flickering of lights in a home. This is a common symptom when the CO detector is interfering with the electrical system.
The most common causes are a faulty or malfunctioning CO detector, a wiring issue, or an overloaded electrical circuit. In some cases, the CO detector may be drawing too much power from the circuit, leading to the lights dimming. This is usually a sign that the CO detector needs to be replaced or the electrical system needs to be inspected by a professional electrician.