I'll have to try that. Thank you hubby has already agreed to help me do a total overhaul to it once we finally shut it down later on this year. I think we'll probably replace ask the old wiring and the switches that go with the wafers.
I have to admit that I was terrified the first time that I realized that I had over 100 eggs in this thing that I would be stuck with 100 poults and chicks. I'm happy to say that they're flying out almost as fast as they hatch I told hubby about that the other day and he just said, he wasn't worried, but then, he never had any idea how many were in it and he wants to keep it that way lol.
I wanted to let you know, I caught Sunny (CCL BOY) attempting to mate for the first time today. He went after one of the ameraucana hens who promptly chased him the other direction but he came back and tried again lol. It's so funny when they start trying and learning.
Someone mentioned the "snap switch" and that is the little black or brown box that the wafer presses against (3006 22amp Thermostat Switch at cutler supply - about $11 + shipping). I'm thinking the front one is defective and when it gets pushed in by the wafer (and turn off the heat) that it no longer snaps back when the wafer pulls back. You could probably see this if you look when it is misbehaving, but the process I laid out will prove if that is the case by making the problem go away. You could still set the front one to 102 if you want the peace of mind of having the safety in place, the prob is you have to get the temp up to 102 to set it, so I would just open the front one all the way (so it will never hit the switch), and use the back one only to control the temp. Assuming that works and the temps are held accurately, you could but a replacement switch sometime. From the part description it sounds like the old style ones could be damaged by power surges, but the new style have some protection built in.
Alternatively, if you can get by with the back one until the season is over, you could replace that front thermostat with a digital one of some sort.