Reasons Why Your Furnace is Blowing Cold Air

Reasons Why Your Furnace is Blowing Cold Air Aspen Creek HVAC DenverIf you are looking for reasons why your furnace is blowing cold air, Aspen Creek Heating and Air can give you some valuable insight as to why this may be happening. More importantly, we can get your furnace back into working order to keep you warm on cold nights here in the Denver and Boulder areas.

The following 3 concerns are the most common issues you will encounter, but they are not the only reasons why your furnace is blowing cold air. Read on to learn more.

  1. Check the Thermostat: If it is set to ON, this may be an easy situation to rectify. When your thermostat is continually running, the furnace blower will invariably run even when your furnace isn’t heating the air, so by adjusting it to AUTO, your furnace will only blow warm air. This is also the first place a technician will look.
  2. Overheated Furnace: If you notice the heater blows cold air, then hot air, then no air at all, there is definitely a problem with the unit, and it is more than likely an overheated furnace. In this case, the safety switch will likely have turned off the furnace blowers. These blowers cool the furnace down to a safe level. A dirty air filter may also be the problem, and inserting a clean air filter is all that you need if the damage isn’t too far gone.
  3. Pilot Light: It could be as simple as a pilot light that has gone out. Just relight it, if it lights, great. If not, then you need to ensure the valve switch is on and it is clean, and gas is flowing freely to the furnace. If the light just doesn’t stay lit, then it may be that a thermocouple needs replacing.

While the above 3 reasons mentioned are common reasons why your furnace is blowing cold air, your technician will also check on the ductwork that you currently have. There may be a slight leak because your ductwork has worn out due to exposure to the elements or age, which will most defiantly cause problems for your furnace. The ducts may also need to be cleaned of dust, dirt, and debris.

Another one to check is the Flame Sensor. Carbon and residue can build up on the flame sensor, causing it to read temperatures inaccurately. Be sure to have it checked periodically by a qualified technician.

And lastly, perhaps the size of your furnace is just not adequate for the size of the home. An HVAC specialist, such as at Alpine Heating and Air, where technicians are incredibly knowledgeable in presenting the facts to homeowners about which units will best suit their needs. Technology has come a long way, and the furnaces of yesteryear are all but gone.

Aspen Creek Heating and Air wants you to know the reason why your furnace is blowing cold air, and help you understand the steps you can take and what to look for. Call us today to give your HVAC system a complete inspection that will ensure your safety, warmth, and security during the cold months of winter. We can set you up with the correct size according to your needs and square footage, as well as offer you advanced systems that will save you money in the long run. We look forward to your call.

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