Why does my carbon monoxide detector Say error?
Why does my carbon monoxide detector Say error? Why does my digital CO alarm say “Err” or “Error”? If your digital carbon monoxide alarm says “ERR” on the display, this means it has malfunctioned and needs to be replaced. Generally, carbon monoxide detectors last between 7-10 years before they should be replaced. Why does my CO detector keep beeping? A CO alarm that beeps continuously without stopping could indicate that carbon monoxide is present. If you your CO alarm is sounding continuously and you have signs of CO poisoning such as dizziness, headache, vomiting or flu like symptoms, find fresh...