Now I'm baffled. I'm a live-aboard on my H376 and try to have air circulation everyday before I leave for work, whether it be open hatches or fans. I look for mold in the corners to make sure because I don't want my work cloths smelling moldy. Two days ago I figured it's time to break out the screens so I went into the V-berth, moved some stuff off the custions and lifted them to get to the screens. When I openned the storage doors, I smelt something...I think moldy smell (I wasn't paying too much attention). Later that night I realized I have a bad moldy smell in the main cabin. I checked all the things that were on the cushions and they seemed ok. I checked the cushions and they seemed ok. I smelled the storage and it did seem to have a smell to it but nothing like what was circulating in the main cabin.Question 1) Could it be that I recently also just turned on the AC (had the heater running before)? I think I heard once that the AC can develop an odor.Question 2) If I do have mold below the V-birth, is there anyway to kill it without taking the V-birth apart and getting to it with vinager?