Ok, well, maybe I'm a skeptic, but I'm not sure the tech solved the issue. Yes, please test by starting your oven. Our CO detector is in the bedroom up high above the closet door. The propane detector is at the back of the RV on the bottom of the wall by the floor and the fire alarm is on the ceiling between the kitchen and stairs to the bedroom. I have to admit that when we are out camping, I often do not undo the tabs on the oven vent hood outside vent flap (that's what it is), but since the stove and oven are right by the door, I will open the door just a little, leaving the screen closed. When it's too cold outside to open, I open the window just a bit, opposite the range. I've never had the CO detector go off, the fire alarm yes, when I cook some things so we set up a fan opposite it to fan it It's so sensitive that I scrapped the idea of having a toaster on board because just making toast in the oven causes the fire alarm to go off.
