Why Your Furnace Could be Blowing Cold Air Published on October 21, 2016 You notice your furnace turn on and you’re expecting a cozy blast of warm air, but instead all you have is cool air blowing. That’s not preferable in the freezing weather! There are a couple reasons why your furnace could be putting off cold air. Mountainwest Service Experts Heating & Air Conditioning is here with a few of them to help you detect the issue. Thermostat It may feel silly, but the thermostat is where you should start. It’s the starting place for any furnace technician, too. Confirm the system is set to “auto and not “on.” If the thermostat is set to “on” then your furnace will blow continually, even when it is not actually heating the air being released, thus putting off cold air. Turning it to “auto” will make sure the furnace only blows when it’s really heating the air to keep your home warm and comfy. Air Filter Typically air filters need to be changed every month to prevent them from getting dirty and clogged. If your filters aren’t swapped out often enough, the dirty air filter may impede airflow into your heating system. If this takes place, it can overheat your equipment, causing the furnace to stop heating as a safety precaution. Duct Work If your duct work contains leaks, connection issues, or was designed incorrectly, it could allow warm air from the heating equipment to seep out. This would not only cause your heating equipment to produce cold air, it could actually run up your utility bills since your furnace is heating non-living space, and will have to work more to keep your home comfortable. There are many other reasons that your furnace could blow cold air. Call Mountainwest Service Experts Heating & Air Conditioning today and we’ll send a technician to diagnose your issue and get your home warm and comfy again in no time. If you have yet to turn on your furnace but don’t want to get left in the cold, call about our fall promotion and ask about how you can save money on a fall tune-up.