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Why is my FA6620-R smoke alarm beeping?

General

23 April 2026

A single chirp at regular intervals usually means the battery is running low. On the FA6620-R, the Sleep Easy feature lets you silence low-battery chirps for up to 8 hours so you can arrange a replacement without losing sleep. A continuous loud alarm means smoke has been detected – evacuate immediately and call 999. If the alarm sounds but there is no fire, press the test button to silence it temporarily and ventilate the room.

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