Option 3: build another incubator....
it just so happens that the digital thermostats and computer fans arrived in the mail this week. Now if I can just find a junked wine fridge I will be all set...
That is definitely easier than opening it to turn them all. Thanks for the idea. I think the trays were turning ok. Some of the eggs in this batch are jumbo size. Maybe they were putting strain on the adjacent trays as some of them did butt up against them.Get some books and tilt the incubator three times a day.
One thing to do when you get the turner parts is make sure that not of the pivots is binding. It sounds like there is a problem like that in the turner.