If your furnace keeps turning on and off repeatedly, cycling too quickly between the heating cycle and the resting or cool-down period, you have a short-cycling problem. Short-cycling wastes energy and actually damages the furnace by causing it to run at above normal temperatures for an extended period of time. This can lead to breakdowns and costly repairs.
As you might have noticed, the furnace in your home turns on and off several times per hour, sometimes even more frequently. Depending on how cold it is, it may do so even more often—even hourly. This cycling is necessary because climate control isn’t like flipping a switch, and a “constant” temperature doesn’t really exist as far as your furnace is concerned. When it happens too frequently, though, your furnace is likely out of whack.
The furnace in your home is just like any other machine, in the sense that it has moving parts that need to work in a certain way for your home to be warm. When something goes wrong with the way it operates, problems are bound to arise. This can lead to gaps in heat or hot and cold spots in your home. Having regular service performed on your furnace can help prevent short cycling from happening and other serious issues from developing within the system…