Question about Kidde Nighthawk Combo Gas/co Detector

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Alarm keeps beeping, reads 0

Our alarm (900-0113) has sounded briefly (3 short beeps) 3 different times today.  The display continues to read "0", nothing else.  I changed the battery thinking that was the problem, but it happened again since then.  I am thinking that it is malfunctioning since it still reads 0 after testing it.  There is a blinking red light next to the 0 which, according, to the manual, means it is working.  I have two small children at home so do not want to misdiagnose.  Thanks.

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Try testing it first. Press the test/reset button. If it's operating properly on the display:
"GAS" - and it should beep 3 times. Then a number should appear on the display. It should be arround 200. Then it should beep 4 quick times, then nothing for 5 seconds, then 4 quick beeps that keep repeating. It will then show 3 numbers again for a few seconds. When they're gone it will be done resetting. It should show a flashing red light and a 0 or whatever the reading might be. Try this and let me know what happens. If this fixes the problem please rate as fixed. If not, please don't rate yet. Let me know what's going on and I'll be more than happy to help. Thanks.

Posted on Apr 16, 2008

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