Why is my AC not blowing colder air?
Why is my AC not blowing colder air? There are a couple of reasons for ice buildup in your AC — dirty coils or filters resulting in poor airflow, or a lack of refrigerant. If that doesn't get the unit blowing cold air again, it could be refrigerant levels are low (see below). Can I set my AC to 68 degrees? By setting the temperature to 68, your AC will end up having to run longer to hit that desired temperature, costing you more money to cool your home. The same is true for heating. To avoid paying more, don't...