Feedback control theory says the thermostat "should" drive the temperature back to the same sensor value, no matter whether the refrigerant is less efficient or not....it "should" do that by simply running the compressor a bit longer. So, unless the thermostat's internal sensor has jumped calibration (which is certainly possible), I don't understand what is going on.
Thank you.
I couldn’t figure it out. Our new ac unit is what I call a 2 stage which means the compressor runs shorter but then it blows all the cold out of the ducts before it shuts down to cycle again. I just figured that was it and it very well may be.
Our old unit shut down when the compressor shut down. Maybe that’s the difference. The compressor was running longer in the old one.