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Nighthawk Carbon Monoxide Detector KN-copp-3




Can You Help With These Problems?

  • Nighthawk Carbon Monoxide Detector KN-COPP-3
    Posted by garlandhawkins on Nov 20th, 2008 at 8:37am

    ERR display
    I replaced the battery in this system but it continues to display the ERR message. I can't find the manual to this device. What should be my next step? Thanks
  • Nighthawk Carbon Monoxide Detector KN-COPP-3
    Posted by mamamina2007 on Nov 17th, 2008 at 10:09pm

    code:err. can't reset
    after reseting attempt it reverts back to ERR. and the cycle of beeps begins

    I've even replaced the battery hoping it would help.

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