Carbon Monoxide Alarm
We're packing for a week long trip to Colorado and the carbon monoxide alarm keeps going off. The 5er has been sitting closed up for a month in the Phoenix heat and has a funky smell inside, maybe black tank sewer gas. It is plugged in to shore power, refrigerator is on electric, propane tanks are off. I saw that the existing detector was very old and replaced it with a new one. With no heater, refrigerator or stove being used, could the alarm be triggered from the black tank gas?