In commercial installations, the contracted maintenance technicians must routinely test the alarms and sensors and replace any that fail, which may be less than 10 years or more. wikiHow is where trusted research and expert knowledge come together. Terrified of public speaking situations? Twist open the smoke detector or gently pull off the top cover to reveal the … 3. Select Silencing alarms. Change the Batteries. And just when you think it's stopped and safe to go back to bed, the incessant beeps start up again. With the battery removed, press, and hold the test button for 15-20 seconds. If you have changed the batteries and/or switched the power off via the breaker and the alarm is still beeping, the system may need to be reset. Turn off the power to the smoke detector at your circuit breaker. An alarm will sound briefly, then the alarm will silence. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/f0\/Stop-a-Smoke-Alarm-Step-1.jpg\/v4-460px-Stop-a-Smoke-Alarm-Step-1.jpg","bigUrl":"\/images\/thumb\/f\/f0\/Stop-a-Smoke-Alarm-Step-1.jpg\/aid9439975-v4-728px-Stop-a-Smoke-Alarm-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

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