What Happens If I Set My AC Temp Too Low?
If you lower the temperature in the AC mode on your thermostat, below 70°F (21.1°C), you risk icing up the indoor air conditioning coil, which will block the airflow through the ductwork. Why is that? Because 70°F to 75°F is the optimal temperature range that engineers designed the equipment to operate within. But, BIG BUT…