Question about Kidde Nighthawk Combo Gas/co Detector

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My detector keeps going off and reading gas 999 err I have tried changing the battery and it keeps beeping. What could be wrong

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Posted on Jan 02, 2017

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  • 5 Answers

SOURCE: carbon monoxide detector err code

You are going to hate this as much as I did!
In the manual you will read this ..

Manual for Kidde Nighthawk C02 Detector
On page 13
----------------------------------
Unit Malfunction
In the rare event that your alarm malfunctions,
it will alert you with a short “chirp” and the red
LED will flash once every 30 seconds. The
digital model will display “Err” as shown in
Fig. 6.
Seven years after initial power up, this unit will "chirp" every
30 seconds to indicate that it is time to replace the alarm.
The unit will not detect CO in this condition. Please replace
immediately.

Posted on Dec 14, 2008

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  • 603 Answers

SOURCE: Our carbon monoxide detector keeps beeping every

Need new detector

Posted on Dec 29, 2009

getyourfix
  • 43 Answers

SOURCE: my carbon monoxide detector keeps beeping in spite

Hopefully you have found a solution for your Carbon Monoxide Detector issue of October 4, 2009. The best solution for a questionable CO dectector is a replacement.

A Carbon Monoxide Detector is the only thing that will read, detect and sound an alert when reads dangerous levels of CO levels in your house. A defective carbon monoxide detector will give you and your family a false sense of security and will give you no protection.

Whenever in doubt, always err on the safe side and replace Carbon Monoxide Dectectors, your life depends on it.

View my website for related information and compare brands and models of Carbon Monoxide Detectors available for sale online.

Posted on Jul 27, 2010

getyourfix
  • 43 Answers

SOURCE: My Kidde Nighthawk Carbon Monoxide detector was

A reading of 221 ppm carbon monoxide gas is a dangerous level that should be taken seriously. You could try a new battery and reset the detector. If in doubt, always err on the cautious side and have the apartment checked by a professional or by the local fire department.

A new carbon monoxide detector is a small investment that may prevent carbon monoxide poisoning or death.

Posted on Jul 30, 2010

reddawgesq
  • 134 Answers

SOURCE: My Kidde Nighthawk CO2 detector

If the display shows "Err", push and hold the Peak Level button. Does the display change to "E09"? If so, then you have just been "had" by the grossly under-documented "planned obsolescence feature" called, rather matter-of-factly, "End of Life". This means that ~7 years after first being powered up, the unit will, BY DESIGN, cease to function, forcing you to buy a replacement. Would have been nice of Kidde to include THAT warning on the OUTSIDE of the package. Call their "Hotline" at 1-800-880-6788 and tell them what you think of that policy. If it is still under warranty (5 or 7 years depending on date of manufacture) they should replace it. In any event, buy another one; if they replace your first one you will have twice the protection. Not a bad thing. *Disclaimer: I am not a lawyer, despite the handle. Words to live by: "Every creative act results from a sudden cessation of stupidity." -Edwin H. Land, inventor of the Polaroid Land Camera"The problem can always be solved with the materials in the room." -My college Physics Lab Instructor

Posted on Feb 01, 2011

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1 Answer

My night hawk carbon monoxide reads L6. Then Err.


Lb (rather than L6) indicates a low battery. You need to replace the 9V battery in the carbon monoxide detector. The Err suggests an internal error but could just be due to the low battery.

If the Err persists after you replace the battery, press the peak level button (the right hand button) and check for an additional error code. If the Err message continues, replace the Night Hawk unit. If the unit is still under warranty, contact the manufacturer. Most of these units have a 10 year warranty. There are several models available from Kidde. The manual is available on the product site. For the KN-COPP-3 Night Hawk carbon monoxide detector, the documentation is available here: http://www.kidde.com/home-safety/en/us/products/fire-safety/co-alarms/kn-copp-3/ . Click on the Documents tab. The manual for the KN-COPP-3 999-0100 is here: http://www.utcccs-cdn.com/hvac/docs/2001/Public/06/User_Guide_KN-COPP-3_900-0100.pdf .

I hope this helps.

Cindy Wells

Dec 12, 2016 | Night Home Security

1 Answer

The detector is going off and reading err. message


There have continual problems with this unit. It may be that you have it mounted or plugged-in in the wrong place. As a co detector it should not be mounted in the same room as the gas appliance or wood burning stove. In addition, as a co/gas detector it should NEVER be mounted on the ceiling. A co/gas detector should always be mounted or plugged-in to a wall receptacle that is at least, but not more than 2 feet off the floor and not in the same room as the gas appliance. It will false alarm and give error messages when in fact nothing is wrong. If the problem continues, return it to the place of purchase for a new one.

Jan 15, 2011 | Kidde Nighthawk Combo Gas/co Detector

1 Answer

Our gas alarm is still in arranty but beeps 3 times about every minute, whats wrong please?


If it's less than 7 years old it's probably just a weak battery. Have you replaced it recently? What is showing on the display? If it reads "Lb", replace the battery. If it reads "Err" and is indeed in Warranty, call Kidde at 1-800-880-6788 to obtain Warranty service. *Disclaimer: I am not a lawyer, despite the handle. Words to live by: "Every creative act results from a sudden cessation of stupidity." -Edwin H. Land, inventor of the Polaroid Land Camera "The problem can always be solved with the materials in the room." -My college Physics Lab Instructor

Jan 02, 2011 | Kidde Nighthawk Combo Gas/co Detector

1 Answer

My Kidde Nighthawk Carbon Monoxide detector was beeping shrilly and read gas. When pressed the reset button it read 221. Problem was it was sitting facedown in a box (i'd just taken it from my old...


A reading of 221 ppm carbon monoxide gas is a dangerous level that should be taken seriously. You could try a new battery and reset the detector. If in doubt, always err on the cautious side and have the apartment checked by a professional or by the local fire department.

A new carbon monoxide detector is a small investment that may prevent carbon monoxide poisoning or death.

Jul 22, 2010 | Kidde Nighthawk Combo Gas/co Detector

5 Answers

British gas carbon monoxide detector problem


If it is beeping 3 beeps every minute it is at the end of its battery life you can just replace the batteries by prising the cover off carefully.be aware though that the life span guarantee of these is only 5 years.

Dec 13, 2009 | Kitchen Appliances - Others

1 Answer

My carbon monoxide detector keeps beeping in spite of replacing thebattery and gives an error code of E09. Also it keeps flashing an err on the led redout. I placed it outside and it is still doing it...


Hopefully you have found a solution for your Carbon Monoxide Detector issue of October 4, 2009. The best solution for a questionable CO dectector is a replacement.

A Carbon Monoxide Detector is the only thing that will read, detect and sound an alert when reads dangerous levels of CO levels in your house. A defective carbon monoxide detector will give you and your family a false sense of security and will give you no protection.

Whenever in doubt, always err on the safe side and replace Carbon Monoxide Dectectors, your life depends on it.

View my website for related information and compare brands and models of Carbon Monoxide Detectors available for sale online.

Oct 04, 2009 | Kidde Nighthawk Combo Gas/co Detector

3 Answers

It keeps bleeping every thirty seconds when plugged in to the mains do we need to worry


If detector is more then 5 years old it will beep every 30 seconde to wirn you the sensor in the detector needs to be replaced. bying a new detector would be better

Sep 27, 2009 | Kidde Nighthawk Combo Gas/co Detector

2 Answers

Beeped but we don't even have a gas line!


your thinking along the right line, combo units seldom work as single function units. keep in mind that a CO detector need to be replaced every 5 years on average. look at the date code on the new unit to make sure it reads good until or replace by 2012 of better.

mj

Sep 06, 2009 | Kidde Nighthawk Combo Gas/co Detector

4 Answers

Nighthawk carbon monoxide alarm model kn-copp-b


Here is a link to the manual, or you can call the consumer hotline at 1-800-880-6788

Nov 10, 2008 | Kidde Nighthawk Combo Gas/co Detector

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