Model #46-0325-2. Make sure everyone is accounted for and check for CO poisoning symptoms. Smoke detectors expire and should be replaced every 5-10 years, depending on the model. Turn on the circuit breaker. [], Blind the Bad Guys with these Bright LED Security Motion Lights We may never know all that creeps in the dark around our homes while we sleep. Prolonged exposure can result in permanent brain damage or even death. Consult your owner's manual or contact the manufacturer for more information. Arm the system, and then disarm it, immediately. The trouble . I had two Energizer AA2450mAh in them. How can I use safety checks to limit my tenant liability for a rental house? If the old battery requires changing or it's slipped out of place, the unit will chirp. Why is my smoke detector beeping without a battery? Any advice? Replace the battery, observing the proper polarity. I had a fantastic time living in one of their apartments. Be sure to check your inbox. Flat or low batteries will hinder the functionality of the device, so it's only fitting that your detector gives off a faint beeping sound to warn you of this. The dirt may cause the detector to start beeping. How many exterior steps require a handrail? Image source. Where are smoke alarms required to be located? Under normal circumstances, these devices release very little carbon monoxide, but that can change if they malfunction. What can I do to avoid kitchen accidents and injuries? Jeremy Laukkonen is automotive and tech writer for numerous major trade publications. My Carbon Monoxide Alarm Is Beeping. What Should I Do? Many brands/models will start beeping at you once they reach their expiration date. Once you've ruled out a dangerous buildup of carbon monoxide, and gone through this list, you might have to reset the device. Over 8,500 inspections completed in 20+ years. How do I safely remove a dead rodent (rat, mouse or squirrel) from the attic? How Do I Reset My Alarm's Battery? - FirstAlertStore.com Also, the combo CO and smoke alarms will have the same end-of-life beeps too. Double check the contacts to make sure they are facing the correct direction. If the above steps yield no relief, disarming the system may do the trick. Defective CO sensors Your detectors may malfunctioning if they start to sound off suddenly. If your battery is fine, your detector doesn't indicate an error, and it's relatively new, then it might be due to a false alarm.