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Why Is My Furnace Blowing Cold Air? A Guide to Fixing the Problem

Updated: Jan 3, 2023

If your furnace is blowing cold air, you're likely experiencing one of two problems: either the furnace is not generating heat, or the air is not being distributed evenly throughout your home. In this article, we'll walk you through the most common causes of these problems and provide you with some tips for fixing them.

-What are some possible causes of a furnace blowing cold air?

There are a few possible causes of a furnace blowing cold air. One of the most common causes is a clogged filter. If the filter is clogged, the furnace will not be able to blow warm air. Another common cause is a problem with the thermostat. If the thermostat is not working properly, the furnace will not be able to blow warm air.

-How can you tell if you need a new furnace?

Many homeowners in the U.S. need to replace their furnaces every 10 to 15 years. If you're not sure whether you need to replace your furnace, ask yourself the following questions:

-Is your furnace more than 15 years old?

-Do you have to replace your furnace filters every month?

-Does your furnace make strange noises?

-Is your home too cold in the winter?

-Is your home too warm in the summer?

If you answered yes to any of these questions, you may need to replace your furnace.

-What are some common repairs for a furnace that's blowing cold air?

There are a few common repairs that can be made for a furnace that's blowing cold air. One of the most common is to check the filter to make sure it's clean and in good condition. If it's not, then replacing it may help to fix the problem. Other common repairs include checking the pilot light and the gas valve, and cleaning the burners. If there is any ice or snow blocking the air intake, that should also be cleared away. If none of these repairs work, then it may be time to call a professional to take a look at the furnace.

-How do you know when it's time to call a professional?

It can be difficult to know when to call in a professional for help. Sometimes it's obvious, but other times it's not so clear. Here are a few things to keep in mind when trying to decide whether or not to call in a pro.

First, consider the severity of the problem. If it's a relatively minor issue, you may be able to handle it on your own. However, if it's a more serious problem, it's probably best to call in a professional.

Second, consider your own abilities. If you don't have the experience or knowledge to handle the problem, it's probably best to call in a pro.

Finally, consider the cost. If the problem is expensive to fix, it may be worth it to call in a professional.

In the end, it's up to you to decide whether or not to call in a professional. If you're not sure what to do, it's always best to consult with a pro.


Are you having issues keeping your home warm during winter? Are you constantly battling cold spots or struggling to keep the temperature steady and comfortable? Chances are, if your furnace isn't working properly, it may be time to call in a professional. At Frost Heating and Cooling, we specialize in offering reliable Furnace repair services that can help get your furnace back on track—quickly and affordably! With our experienced team of expert technicians on hand ready to help diagnose any problems you’re facing with your heating system and provide quality Furnace repair that will last for years, our team can provide the peace of mind knowing that when you need us most, we'll be here for you.




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