Sorry to hear about your misfortune. I know how touchy incubators can be. It sounds like you've covered your bases. Are your eggs getting turned? We use to turn eggs until they went inside the incubator and had trays inside the incubator that turned themselves. I can't recall the brand name and loaned it to my wife's uncle in New Mexico. When he passed away someone got his chickens, incubator, drop pens, show cages, etc. I've just got back into the chickens and trying to make a strain of American Game bantams in the Black Breasted Red variety. Good luck with your next hatching!