What should you do if a smoke detector starts chirping intermittently?

When a smoke detector starts chirping intermittently, the primary action to take is to check the batteries. This chirping sound typically indicates that the battery is low and needs replacement. Smoke detectors rely on batteries to function correctly, and a low battery can compromise the detector's ability to alert occupants to smoke or fire. By checking the batteries first, you can often resolve the issue quickly and ensure that the smoke detector remains operational.

Addressing the battery as the first step is crucial because it is a common and easily fixable reason for the chirping. Ignoring the sound is not advisable, as it could lead to serious safety risks if the detector fails when needed. Replacing the smoke detector immediately may be unnecessary if the problem is simply the battery. Contacting a professional service could also be an extra step if the issue persists after checking the batteries, but it is not the first action to take in this situation.