My incubator has been all kinds of crazy this hatch. It is the third hatch for this homemade bator. The first two hatches were beautiful successes. First chicks, the ducks. This third hatch was chicks, pricey hatching eggs plus a few mutts from a neighbor. The incubator was cleaned and stabilized for three days before setting the eggs. Everything was great up until the last week. Temps kept spiking and dropping. Once to 109*F! I was able to stabilize and maintain temp and humidity for 48 hours leading up to lock down. Everything seemed ok so I felt good about going out of town for a day and a half. Unbeknownst to me the AC/heat was turned off and a cold front moved in. I got back and no hatched/pipped/peeping/wiggling chicks or eggs and the temp reading 90*F humidity 27%! It took several hours to get the temp back up, and I have no idea how long the temp was that low. I am concerned that all the chicks might have died. Hatch was set for Nov. 1st. Still no signs of hatching. Can't even candle the eggs. They are dark maran eggs.