Is this Aprilaire digital humidistat working right?
I have a new Aprilaire humidistat installed, the kind that has the outside temperature sensor. I'm not sure if it's defective or not. So far, here in Minnesota, we had below zero temps for about a week, and that was a good test for the humidistat. I tried it out at starting at setting 5, then I had condensation on the windows in the morning. Then I set it down to 4, same thing happened, then to 3, and 2, and the same thing happened. Now it's warmed up so I can't test it at Setting 1 in the cold temps, but I hope I don't get condensation there or I'm out of luck since that's the lowest possible setting. How do the rest of you in really cold climates have your digital humidistat set so you get maximum humidity but no condensation?
Another problem is the indoor humidity reading that it gives doesn't seem consistent. For instance, if I check what humidity it says my house is currently at, then cut power to the unit for a couple minutes, then restart it, it'll usually give me a humidity reading that's 5% higher than it was a couple minutes ago.
Otherwise, the unit seems to be working. It decreases the stated humidity as it gets colder out, and increases it as it gets warmer. But with the other two problems, I'm wondering if it's not reading the indoor humidity right and that's leading to my condensation problems and inaccurate humidity reading on the panel display.
Anyone else's digital humidistat behave this way, and for those of you in a cold climate, what do you set your digital humidistat at?