The answer to 'why is my smoke detector power surge' is that a power surge can cause smoke detectors to malfunction or stop working. Power surges are sudden spikes in electrical voltage that can damage sensitive electronic components like the ones found in smoke detectors. This can lead to the detector not receiving enough power to function properly, causing it to sound an alarm or stop working altogether.
Common causes of power surges include lightning strikes, faulty wiring, or issues with the electrical grid. Symptoms of a power surge-related smoke detector problem may include the detector going off randomly, beeping intermittently, or failing to respond when tested. To resolve the issue, you may need to reset the detector, replace the backup battery, or have a professional electrician inspect your home's electrical system.