The answer to 'why is my smoke detector' is that there are several common causes for a smoke detector not functioning properly. This can include low battery, a buildup of dust or debris, or a malfunctioning sensor. Symptoms may include the detector chirping, not responding to test buttons, or failing to detect smoke. Solutions can range from simply replacing the battery to more complex issues that may require professional repair or replacement of the device.
It's important to address smoke detector issues promptly, as these devices are critical for home safety. Homeowners should first try basic troubleshooting steps like changing the battery. However, if the problem persists or you are uncomfortable working with electrical components, it's best to call a licensed electrician to diagnose and fix the issue.