The problem is that right now, it is 95% humid outside with a temperature of 28 degrees. Of course the fan is running right now, but it seems unnecessary.
Correct me if I'm wrong, but condensation is only going to occur if there is a large difference between attic temperature/humidity and outside temperature/humidity.
So to me, it seems that having a single humidistat in the attic is just dumb and will run the fan during unnecessary conditions.
Should I just disable the humidistat?