The answer to 'carbon monoxide detector flickering lights' is that a flickering or blinking carbon monoxide (CO) detector can be caused by a few common issues. This can indicate a problem with the detector itself or potential CO levels in the home.
One common cause is a low battery. As the battery in the CO detector starts to die, it can cause the lights to flicker or blink. This is a sign that the battery needs to be replaced. Another potential issue is a faulty or malfunctioning detector. Over time, the internal components can wear out and cause the detector to behave erratically. In some cases, a flickering light can also indicate the presence of carbon monoxide in the air, which the detector is detecting and alerting you to.