- If your thermostat is set correctly and you’re still experiencing blasts of cold air, you have a problem
- A dirty filter can lead to even more major issues if left unchecked
- If you’re using a gas furnace and noticing cold air, there’s a good chance the pilot light is out
As you might have guessed, a furnace that’s blowing cold air in Salt Lake City or Park City is not only completely useless, it also means something is not quite right. If your thermostat is set correctly and you’re still experiencing blasts of cold air, there are several things that could be wrong.
A dirty air filter could cause your furnace to blow cold air. When a filter is too dirty, it can cause the heater itself to overheat which will result in cold air not hot air. It’s important to check your air filter on a regular basis. A dirty filter can lead to even more major issues if left unchecked.
While leaky or damaged air ducts won’t actually cause cold air to blow from your furnace, they can significantly reduce the efficiency of your furnace. Exposure to outside air and escaping air will result in air that feels cooler and is not being heated properly. Schedule regular check ups for your furnace and duct work with an HVAC professional.
If you only want warm, heated air to blow through your home, you should make sure your fan is set to “auto” not “on.” When set to “auto” this means the fan will only turn on when the furnace is heating air. If left in the “on” position, the fan will blow air constantly, including unheated air when the furnace is not functioning.
If you’re using a gas furnace and notice cold air, there’s a good chance the pilot light is out. If the pilot light has gone out, you’ll need to relight it. Check the owner’s manual on how to relight your pilot light. If you’re uncomfortable lighting the pilot light, you can call your local utilities company or an HVAC technician for assistance.
In some cases, if your furnace is blowing cold air, it may be that your flame sensor is dirty or broken. In this scenario, the gas of your furnace will not burn long enough to thoroughly heat your home. If you suspect your sensor is the problem, call an HVAC professional for advice and the needed repairs.
A furnace that blows cold air needs to be addressed as soon as possible to avoid bigger issues in the future and to maintain a warm home throughout the winter.