Question about Kidde Firex I4618 Smoke Alarm W/battery Backup
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?
Posted by Anonymous on
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
Posted on Dec 06, 2014
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.
Posted on Sep 21, 2017
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Posted on Jan 02, 2017
Constant problems with these combo detectors. My best suggestion is unplug it from the wall, remove the battery, leave the battery compartment open, then using a can of compressed air that has a straw nozzle (like you clean your computer with) blow the dust and lint out of the unit. Pay particular attention to the grill vents on the front. When doing all of this, hold the can of compressed air as upright as possible. Replace the battery and plug it back into the wall receptacle.
Hopefully, that will clear up the problem. and accumulation of dust and lint will cause them to false at times.
Pressing and holding the test button for 5 seconds is "supposed" to reset the detector.
Posted on Feb 28, 2011
Depending on manufacturers and such, the catalyst detector element itself may need to be replaced occasionally. Usually cheaper and faster to just get another detector.
Posted on Nov 02, 2009
This is the troubleshooting information from the kddie site. The problem is usually related to an older battery or improperly installed battery. You might also have to do a reset as described below. If battery and cleaning don't work, it might be time for a replacement - short money to keep you and your home safe.
Verify that a battery of the recommended type is securely installed. Make sure to use a battery with a use-by date no later than four to five years in the future. Check that the battery is snapped in completely so it cannot be shaken loose. It’s possible that battery connections may not be making good contact with the battery. Disconnecting and re-connecting the battery once or twice will likely fix this condition. On units with a front-load battery, be sure that the battery compartment door is closed completely as well. Loose white neutral wire can cause an echoing chirp. (From one unit to the next)
Dust and insects can collect in the sensing chamber of the alarm. An accumulation of dust in the sensing chamber can cause the unit to chirp. It is good practice to clean the smoke alarm when you change the battery. Static electricity from the ac quick connector attracts dust and can cause false alarms.
Cleaning smoke alarms:
To clean your alarm, remove it from the mounting bracket as outlined here. You can clean the interior of your alarm (sensing chamber) by using compressed air or a vacuum cleaner hose and blowing or vacuuming through the openings around the perimeter of the alarm. The outside of the alarm can be wiped with a damp cloth. After cleaning, reinstall your alarm, verify the green LED is on and test your alarm by using the Test Button. If cleaning does not restore the alarm to normal operation, the alarm should be replaced.
Some current model smoke alarms have a processor that retains certain error conditions, such as a weak battery. The error condition should reset when the battery is replaced but sometimes it does not and must be manually reset to clear the error.
To reset an AC unit with a battery backup:
Turn off the power to the smoke alarm at the circuit breaker.Remove the smoke alarm from the mounting bracket and disconnect the power. Remove the battery. Press and hold the test button for at least 15 seconds. The unit may chirp or alarm for a few seconds before going silent.Reconnect the power and reinstall the battery. The unit will chirp once when the power is restored and should not chirp afterwards.
To reset a DC only unit:
Remove the battery. Press and hold the test button for at least 15 seconds. The unit may chirp or alarm for a few seconds before going silent.Reinstall the battery. The unit will chirp when the battery is first connected but should not chirp afterwards.
If the AC power to the unit is interrupted, the unit will chirp when the power is restored. This could be caused by power surges. If the chirping seems to occur at about the same time in the evening or morning, it could be due to a surge created when the power company switches electrical grids to meet demand. Check to see if the chirp (or chirping) occurs when something else in the house is turned on such as an exhaust or attic fan, a heater, etc. If the smoke alarm is connected to a circuit with such a device, the alarm may chirp when the other device is switched on. If this is the case and the device is plugged into a wall outlet, move it to another outlet on a different circuit. If it is a hardwired device, have an electrician investigate it. These conditions can be minimized by installing your alarms on a dedicated circuit in compliance with NFPA requirements.
If none of these conditions exist and the suggestions don't alleviate the symptom, the alarm should be replaced. Age may be a factor. Smoke and heat alarms should be replaced every 10 years, and carbon monoxide and combination alarms should be replaced every 7 years. Most of our alarms have a 5 year warranty from date of purchase (check your user manual for details). A date code is stamped on the label attached to the back of the unit.
Posted on Mar 23, 2010
SOURCE: chirp every 30 second
There are 2 things you can do:
1. Check and change batteries.
2. Clean them. Ensure they are completely clean.
If that does not work, you can ask the local fire dept. to look into it free.
Other than that you will have to take it in for servicing/repair.
Posted on Apr 23, 2010
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