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Why is My Furnace Blowing Cold Air?

woman adjusting thermostat in cold home

Home heating solutions are incredibly popular in Canada, and there are different options that people go with. Furnaces are typically quite reliable, but they can have problems from time to time.


If your furnace starts blowing out cold air, you'll know something is wrong, but it's hard to tell what. There are some simple solutions that can fix things, or you may need help from furnace replacement experts. If you're uncertain, a professional furnace inspection may be the way to go.


In this guide, we'll look at some of the issues that could cause your furnace to blow out cold air. Keep reading for more. 


Check Your Thermostat Settings

Checking your thermostat is the first thing to do, and if this is the issue, you shouldn't require a furnace inspection. If the thermostat is set to ON, then the blower will keep running even if the furnace isn't generating any heat. This will cause it to blow out room-temperature air that might feel cold, and overall, your system will be less efficient.


Change the setting to AUTO. This will ensure it only blows out air when the furnace is heating.


Change the Air Filter

Your air filter will naturally collect dirt and debris with time. If it becomes too clogged, your furnace may not function properly.


You should clean the filter at least once every few months to maintain the quality of the air in your home. If it's too dirty, you'll need to replace it so that your unit starts working as it should again.


Check the Pilot Light

If your pilot light goes out, your furnace might start blowing out cold air. Fortunately, it's an easy fix. 


If you have an older furnace, you'll need to relight the pilot light manually. With a newer furnace, it can be as simple as pushing a button.


The pilot light shouldn't go out often, so if it keeps happening, you'll want a professional to take a look. There's likely another problem that might require an HVAC professional to assess your furnace.


Restart the System

Modern systems are more complex and often computer-controlled. While this provides various advantages, it also means there are different things that can go wrong.


Sometimes, a glitch can occur. In this case, you can restart your system like you would with a computer, and this might fix the problem.


When you turn it off, leave it off for about 30 seconds before starting it up again. If this doesn't resolve the issue, you'll want a professional furnace service to take a look at your system and carry out any necessary heating repairs.


Do You Need a Professional Furnace Inspection? 

Some of the issues you might experience with your furnace are easy to fix, but others aren't. If you're not sure what the problem is, you'll want a professional furnace inspection.


Don's Heating & Cooling is a professional HVAC company that offers home furnace repair in Ontario and various other HVAC services. You can even contact us 24/7 in case of an emergency. To get an idea of your furnace inspection cost in Orangeville or nearby, get a free quote from Don's Heating & Cooling today.



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