My LG was dead stable for the first 18 days with the exception of the 2 times we candled, but it jumped right back to temp. quickly......until the hatching started! OMG! I haven't slept for 2 days because as soon as chicks started hatching on Saturday the temp went wacky--fluctuating to extremes of only 98 and up to 103. I was expecting the humidity to go up during the hatch, but the temp was all over the place.
Now, almost 1/2 way through Day 23, I only have 4 chicks out of 12 eggs! I haven't lost all hope as several people have said that still air incubators usually have cool & hot spots causing early or late hatches. I had my first pip on Friday evening around 5:30 (Day 21), although it didn't hatch until late on Day 22. Currently, I'm holding out and hoping that a few more will decide to make an appearance--if the crazy temp. fluctuations at the end didn't do them in.
I'm picking up the fan kit tomorrow for my next hatch that is waiting to be set. If it doesn't do any better with the fan, then I'm trashing this one and buying a good one! This is way too much headache for no pay-off! :-(