Smoke alarm problems beeping & chriping

[ElectricianPDQ]

How to fix random nuisance false smoke/fire alarm/detector problems.

Common problems with residential smoke alarms & fire detectors.

My smoke detector/alarm just started beeping about every 30 seconds.

Replace the all the batteries in all the smoke detectors at same time. If one battery in the system is bad it can cause all the units to beep or chrip in your home.
P.S. New batteries can be defective. So you may need to try a couple of batteries to make sure.

Some time resetting older smoke alarms is required. Disconnect the power, remove the battery and then press the test button to discharge the residual power before installing the new battery.


The smoke detector/alarm just randomly goes into full blown alarm mode for no aparant reason.

Dirt, dust or even high humidity levels inside the smoke detectors are very common reasons for false alarms. Small bugs or spiders crawling around in the smoke detector unit, interrupting the sensor beam is more common at night time. Disconnect the power and then use a can of compressed air (key board cleaner) or your vacuum to clean/remove foreign particles from the smoke detector(s).

Over time hair spray, perfumes, paint fumes, greasey cooking smoke, candle smoke, cigarette smoke, dust and other airborne contaminates build up on the sensor causing nuisance false alarms. Replace dirty units with a new smoke alarm/detector(s). It's recommended to replace all your smoke alarm or fire detector every 10 years or sooner with new units.
P.S. Don't try rinsing out or washing any electrical sensor, device or smoke detector/ alarm.

Room air temperature changes can result in random false alarms.

[ExcelGlen]

Install new all new batteries but there's still a beeping/chirping nosie some where in a 3 level condo.
Man, That was a fun service call. We finally removed all the know smoke alarms and placed them outside the house before we found a plugin CO detector/alarm behind a sofa with a weak battery.
Glen
www.ExcelElectricOh.com