Why does my furnace keep blowing hot air?
Why does my furnace keep blowing hot air? Furnace overheating can be the cause of your cold air dilemma. Changing the dirty air filter can solve this problem. The dirty air filter blocks the airflow, causing the furnace to run longer to heat your home until it overheats. It is important to note that constant overheating can damage your heat exchanger. Why is my furnace running in the summer? A: Nothing is wrong with the furnace. The house stays comfortable in summer because the furnace is not producing heat. During the heating season, when the outdoor air would cool down...