gitpicker2009ExplorerJul 04, 2023Carbon Monoxide alarm going offI have two Carbon monoxide alarms. One just for CO and the other does CO and propane, and they're both going off. The CO, made by Kidde, is reading over 350ppm. What I don't understand is the TC c...Show More
jimh406Explorer IIIJul 04, 2023Different types of detectors can go off if dirty. Try some compressed air/canned air and see if that helps.
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