First off, let me say that i'm used to still air incubators. I've got my new Hova-bator running, getting ready to test out. I have a very accurate thermometer in there. The thermometer is reading 39-40 degrees Celsius (102-104) but when I open the lid and quickly put my hand in the air feels cold. Is that just what happens with fans? Also, I have turned it down as low as it can go and it is still up at 39 (102<). What am I supposed to do about that?