How To Silence Smoke Detector Low Battery. Remove and replace the battery from the smoke detector. An alarm will sound for a short time then the alarm will silence.

How to Temporarily Disable Your Smoke Alarm. If there was a layer of dust or insect crap interfering with the detector this might clean it out. Covering the smoke detector with a dishcloth can work.
If you need to order a replacement battery you can reference our Battery Identification page to find out which battery is required for your system or peripheral device.
Take out its battery then press the Test button holding it down for 15 seconds. A Press the test button in the centre and release. To silence a nuisance alarm press and hold the TestSilence button on your unit. Smoke and Carbon Monoxide Detector Hardwired.
