Why is my heater blowing cold air instead of warm air?
Why is my heater blowing cold air instead of warm air? Has this ever happened to you? The room’s just a little too cold, and you turn on the heater or furnace only to be greeted with cold air instead of warm. In addition to being annoying, it could mean there’s an issue with the furnace. Let’s look at the most common causes of cold air coming out of a furnace, how to fix them,