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Question About Nighthawk Carbon Monoxide Alarm kn-30-pp.3
It keeps beeping showing numbers 888.8 then when ...

It keeps beeping showing numbers 888.8 then when ri reset it it shows 289"0 then goes to 0" I reset it but it keeps going off, have had for 2 months no problem. Should I worry or just reset it over and over

Asked by katherine on 05/27/2014 1  Answer

ManualsOnline posted an answer 9 years, 11 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

Rewarder User posted an answer 9 years, 10 months ago

5 Your carbon monoxide detector is trying to tell you something if it is making noise. In your manual, you are directed to check the batteries and replace them. Your manual can be located at http://www.kidde.com/Documents/900-0076.pdf Even hard-wired or plug-in detectors need a battery to enable them to work during a power outtage. Check how much CO the detector has found in your home in the past two months by pressing the Peak Level button. The CO level is continuously monitored and therefore the peak level component measures how high the monitor has noticed CO in your home at some point. If that is the 288 you see on your display, steps must be taken to determine whether it is a true reading of CO or whether smoke, dust, humidity, chemical sprays, etc. are causing it to misfire. Because it consistently resets to zero "0" it may be that it has detected no CO in your home, but has in the past. The 888 is an error code to tell you it's not ready yet or it's not able to work properly. It is a self check and as soon as it is ready, will return to zero. Once you have done all that, press the reset button to give it a chance to shake out and get going again. If you see anything higher than zero on the reset, take steps recommended in the manual. Once you understand how the monitor works, you will understand your home and what it takes to make it safe for you. If the manual is confusing or you just can't wrap your head around the darn thing, visit your local firehouse. Bring the detector with you. They will help you and they may see that it is not working properly. In that case, return it to the store for a replacement. The National Fire Protection Agency (NFPA) has additional resources and may be accessed via the Internet or at www.NFPA.org
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