My smoke detector keeps beeping every 30 to 60 seconds even though there is no smoke. I replaced the battery but it won't stop.
A chirping smoke detector with a new battery usually means the detector itself has reached end of life or the battery was not installed correctly. Smoke detectors have a lifespan of 8 to 10 years and chirp when they expire. Check the manufacture date printed on the back of the detector. If it is more than 10 years old, replace the entire unit. New smoke detectors cost 10 to 30 dollars. If the detector is newer, try these steps: remove the battery, press and hold the test button for 15 to 20 seconds to discharge residual power, then install a fresh battery and reinstall. Make sure the battery contacts are clean and the battery is firmly seated. For hardwired detectors, turn off the breaker, remove the detector, unplug the wiring connector, press and hold the test button for 15 seconds, reconnect the wiring, reinstall, and restore power. If it continues chirping, try a different brand of battery — some detectors are sensitive to battery voltage and a slightly low battery can trigger chirping. Also check other detectors on the circuit — interconnected hardwired detectors can trigger each other.
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