Have you had to adjust the temperature? It's preset for the correct temp, but I have two, and the temps on both are reading 98.4 to 98.8. They are in a room with stable temps. The instructions say to wait and let the quality of the first one or two hatches determine if you should adjust the temps. I'm at the end of the first hatch, late on Day 21, and only two pips, that haven't progressed for a day.