Review on Aprilaire 🌡️ 56 Humidity Controller by Amanda Rochon

Updated version of the same model that was originally installed with an Aprilaire Model 400 humidifier 12 years ago. same wiring etc. Now it works fine. There was a small error during installation because I hadn't switched the selector switch under the cover fully to where I needed it. (It was moved to the left, but not all the way.) After I corrected this setting, everything worked fine.