Why is My Furnace Blowing Cold Air?

There’s nothing quite like the bone-aching struggle to clear the snow off your sidewalk while facing a 30 mph cross-wind blowing directly into your eye. After the task is done and you limp through your home in your frozen pants like a combination robot/scarecrow, the warmth of the furnace encompassing your whole body is starting to become a reality. You hear the rumble in the blower motor and the hot air working its way through the ducts only to deliver an arctic blast of cold air into your face….

“Furnace, you had one job.”

When your furnace is blowing cold air it’s really no longer a furnace is it? This is not only a nuisance but a legitimate danger that could compromise the sanctity of your home’s pipes, electronic components, and other features such as your body, that should be kept above freezing temperatures. The winter is hard enough, you don’t need a furnace blowing cold air to pile on to the misery so here’s what could be causing these issues:

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