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Question About Nighthawk Carbon Monoxide Alarm KN-COP-DP
how do i......

...correct the err mode

Asked by on 02/03/2010 7  Answers

ManualsOnline posted an answer 14 years, 8 months ago

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

alison posted an answer 14 years, 7 months ago

5 you need to check manufacture date .the sensor is good for 7 years. you need to by new alarm there is no 9 volt battery in this model. mine was made 2002 lasted till 2010
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Jesse posted an answer 14 years, 8 months ago

4 I have a nighthawk KN-COP-DP, and it beeps every25 to 30 seconds, and on the screen it shows Err. How do I reset this detector.
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Jesse posted an answer 14 years, 8 months ago

4 I have a nighthawk KN-COP-DP, and it beeps every25 to 30 seconds, and on the screen it shows Err. How do I reset this detector.
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Jesse posted an answer 14 years, 8 months ago

3 I have a nighthawk KN-COP-DP, and it beeps every25 to 30 seconds, and on the screen it shows Err. How do I reset this detector.
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alison posted an answer 14 years, 7 months ago

2 you need new alarm there is no back up 9 volt in this model mine just went it was made 2002 its sensor is only good for 7 years.
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Jesse posted an answer 14 years, 8 months ago

1 I have a nighthawk KN-COP-DP, and it beeps every25 to 30 seconds, and on the screen it shows Err. How do I reset this detector.
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