Hello. Normally we would say that if there are no obvious signs of a fire, the alarm should be cleaned before being reinstalled. False alarms are most commonly caused by something interfering with the sensor. To clean, after disconnecting the alarm and removing any removable battery: hold the unit by its edge and thoroughly blow through the gap on the side of the unit with compressed air (like keyboard cleaner). We recommend cleaning out all of your smoke alarms at least every 6 months to a year and at this point we would recommend cleaning out all of your other alarms as well as a preventative. However, if the alarm won't test then that is a different issue entirely. Call us with the alarm in hand at 1-800-880-6788 so we can get this resolved for you.

Hello. If you have issues with our alarms again, please call us at 1-800-880-6788 before you replace them. We do stand behind our products and we are happy to troubleshoot and figure out what is going on and get an issue resolved. False alarms are most commonly caused by something interfering with the sensor. To clean the alarm, hold the unit by its edge and thoroughly blow through the gap on the side of the unit with compressed air (like keyboard cleaner). We recommend cleaning out all of your smoke alarms at least every 6 months to a year and at this point we would recommend cleaning out all of your other alarms as well as a preventative. If you have interconnected alarms, the first step is finding the initiating unit, as that is the key. See the owner's manual. Some of your alarms may be in one the locations to avoid listed in the owner's manuals. This would especially include alarms being installed within 3 ft (.9m) of a forced air supply ducts used for heating or cooling, ceiling or whole house ventilating fans, or other high air flow areas. We recommend that alarms not be installed near vents, flues, chimneys, or fans. We recommend that alarms not be installed near doors or windows near areas directly exposed to the weather. We strongly recommend not to install these alarms in garages, attics, and crawl spaces as you will get temperatures, dust, insects, and chemicals that can cause nuisance alarms. If you still have the old alarm, call us with that alarm in hand and we will see what we can do.

Hello. This alarm has the UL required 3 long beeps, a pause, 3 long beeps, a pause, over and over again for smoke. For carbon monoxide, it has 4 quick beeps, a pause, 4 quick beeps, a pause, over and over. It sounds like some dust or debris or an insect got into the smoke chamber of the alarm and the alarm mistook the debris for smoke. It is possible that vacuuming out the alarm around the back side edges of the alarm very thoroughly with the hose attachment of a vacuum cleaner or blowing out the alarm with a can of compressed air like keyboard cleaner around the back side edges very thoroughly might have flushed out any debris and restored the alarm to working. We recommend cleaning out all of your smoke alarms at least every 6 months to a year and at this point we would recommend cleaning out all of your other alarms as well as a preventative. If you have issues in the future, please contact us with the product in hand at 1-800-880-6788 and we are happy to figure out what is going on and how we can get the issue resolved.

ello. It sounds like some dust or debris or an insect got into the smoke chamber of the alarm and the alarm mistook the debris for smoke. It is possible that vacuuming out the alarm around the back side edges of the alarm very thoroughly with the hose attachment of a vacuum cleaner or blowing out the alarm with a can of compressed air like keyboard cleaner around the back side edges very thoroughly might have flushed out any debris and restored the alarm to working. We recommend cleaning out all of your smoke alarms at least every 6 months to a year and at this point we would recommend cleaning out all of your other alarms as well as a preventative. If this doesn't resolve the issue, call us at Kidde Safety at 1-800-880-6788 with the alarm itself in hand and let us see what we can do for you.

Hi, thank you for your question! In most cases, smoke or CO alarms are not eligible for standard recycling. We recommend following the disposal instructions provided by the manufacturer or contacting your local waste management facility for guidance on how to safely dispose of electronic devices.

We appreciate you choosing us, Patti! This review showcases our commitment to prioritizing length of life and quality products for all of our customers.