Question about Kidde Nighthawk Combo Gas/co Detector
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.
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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Posted on Jan 02, 2017
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AMI BIOS beep codes
Below are the AMI BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary.
Beep Code Descriptions Document
1 short DRAM refresh failure CH000996
2 short Parity circuit failure CH000607
3 short Base 64K RAM failure CH000996
4 short System timer failure CH000607
5 short Process failure CH000607
6 short Keyboard controller Gate A20 error CH000383
7 short Virtual mode exception error CH000607
8 short Display memory Read/Write test failure CH000607
9 short ROM BIOS checksum failure CH000607
10 short CMOS shutdown Read/Write error CH000239
11 short Cache Memory error CH000607
1 long, 3 short Conventional/Extended memory failure CH000996
1 long, 8 short Display/Retrace test failed CH000607
For more information go to: http://www.computerhope.com/beep.htm#04
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