Sorry, should have explained how I set mine.... On a freezing day I open the bay door and using a IR temp gun I waited until the probe on the Tstat got to 36 and then I could hear it click as I turned it. With the heat from the A Hot I doubt it even comes on until it's well below freezing.
Contrary to the warning not to store anything in that bay, I built a short wooden platform that clears the water lines and pump on the floor. I put a medium sized tool box on it plus the rods for my awnings and a 10 lb foam fire extinguisher fit in there.