I have the Firex i4618, after changing the battery it continues to chirp, have tried 2 new Duracell proper model batteries with same result
Low battery chirp continues to alarm every 30 to 40 sec. Tried 2 new Duracell from 2 different packs and it continues to chirp. Have removed power wire, removed battery and held test button for 15 to 20 seconds, re-attached power wire, installed battery...still chirps every 30 to 40 seconds... How do I stop this?
Home - Kidde - Firex I4618 Smoke Alarm W/battery Backup
Answers & Comments
Smoke Detecotrs have a limited lifespan of 5-7 years. So sounds like you need new one (Its not worth to buy just a sensor). Take a look on amazon Amazon: Amazon com Smoke Alarm. I hope this helped you. Have a nice day
Mine did this after fewer than three years. Confirmed by electrician that the code was end of useful like. May have been compromised by power outage? Really? $500 to replace them all after every power outage?
I had the same issue and was getting really upset with the Fires i4618. As an electrical engineer I really wanted to fix this. I tried several different batteries, including approved models, with same result. I measured the voltages of each and they ranged from 9.22 - 9.68 VDC. What didn't make sense is I replaced batteries on units that weren't chirping and then they started after putting the new batteries in. I thought I should be able to put the old battery back and it would be fine again right? Wrong! It continued chirping and was driving me nuts. I thought maybe the electrical prongs inside weren't making good contact, so I pried them out further. Still not working. I finally prayed "God help me please." Shortly after I noticed a spring beside the battery that gets pushed down when a battery is inserted and the lid is closed. I thought "Hmm, I wonder if that is part of a circuit tied to the battery?" So I tore off a piece of paper and wrapped it around the battery to make the battery slightly thicker and put more pressure on the spring. I inserted the battery and closed the door. I noticed a red light flash once when closing the door, which I didn't recall seeing before. I reinstalled and waited for the chirp to happen again. It didn't happen so I tried this same method on two others. It worked on 3 of 3. "Thank you God!" Can't say it will work for everyone else, but it's worth a try. Hope this helps save a few hairs for others out there.
FireX was purchased by Kidde awhile back (please see this Google Vlog for fuller explanation): http://kiddefirex.blogspot.com/