Kidde Carbon Monoxide Detector Error Codes Carbon Monoxide Detector - Peak Level Reading Question?

Carbon Monoxide Detector - Peak Level Reading Question? - kidde carbon monoxide detector error codes

I find the Kidde KN-COPP-3-detector, and a little effort, how they work.

So far I have not had any alarms always go get a reading of zero. But today when I got home, I had the message "Err" error that appears when I tested the memory and the peak appears as the "999". When I try to now, but the drive reads "0".

How is it possible that I have read and 999ppm alarm never went away? Is it because of the error that show today? The equipment plugs, when I checked, I believe, exactly what would have happened, had a brief spikes / blackout, but my neighbors say, there is no such thing.

Just Wonderin concernedg, what this machine is trying to say. I am looking for a range of customer service, so you see yourself.

(For comparison, I am not now, I have recently learned symptoms of CO poisoning, but for reasons of safety, I opened my window and do some tests on the device.)