What "switch" do you set your 1588 hovabator genesis to? The temp in mine is reading different on two different thermomators and wondering what "switch" is the factory preset 100.0 F.
I believe both of mine came set with the #4 switch on. My older one I had to change to #6 at the beginning of this season because it was running a degree lower than I wanted.
I would make sure you have a really accurate thermometer that you can trust before changing the factory settings.
Carolyn