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Trusted Saskatoon Furnace Experts at JOB Heating and Air Conditioning Explain Why Your Furnace is Blowing Cold Air

JOB Heating & Air Conditioning Saskatoon is eager to provide the best possible customer experience. Their aim is to be a professional resource for our clients before, during, and after the sale! Their team takes pride in service knowledge of modern equipment and training. They are recognized by peers and offer sales, service, training & installations for residential, and commercial Heating, Cooling, and Plumbing systems in Saskatoon and the surrounding area. JOB Heating & Air are Trusted Saskatoon Furnace and Air Conditioning Experts. In their latest article, they discover reasons why your furnace is blowing cold air.

Is Your Furnace Blowing Cold Air?

This may be a sign that your furnace requires attention. Read on to discover reasons why your furnace is blowing cold air.

Your Furnace Has Not Warmed Up


Whenever it is the beginning of a heating cycle, you will get a blast of cold air when you turn on your furnace. Much like when you first turn on a faucet, cold water is going to flow out at first rather than hot. As your furnace warms up, it must first push out the cold air before warm air will blow out of your vents. If your furnace blows cold air briefly, this is likely the explanation. However, if warm air does not follow the cold air after a few minutes, it is time to call in an expert. 

The Thermostat Setting Is Incorrect  

Ensure the thermostat is set to “AUTO” instead of “ON”. When the thermostat is set to “ON”, the fan will continuously run even when the furnace is not in a heating cycle. This means that the fan will blow cold air throughout your home, instead of warm. The thermostat should always be on “AUTO” to ensure that the fan will only blow during a heating cycle. 

The Flame Sensor Is Dirty

The flame sensor detects whether or not your furnace’s gas burners are lit. A dirty flame sensor will keep the gas burner from staying lit, and cause the burners to shut off. This results in cold air blowing from the vents, as the furnace does not have a heat source. Unless you are familiar with furnaces, a dirty flame sensor should always be cleaned by a professional to restore heat. 

Your Furnace's Pilot Light Is Out

Especially if your furnace is older, cold air is a sign that the pilot light is out. If you are comfortable doing so, follow your furnace’s instructions on how to relight it. If the flame goes out again after a few minutes, contact a professional as technical work is likely necessary. 

Your Furnace's Air Filter Is Clogged

When the air filter is clogged, airflow is restricted. Restricted airflow can cause your furnace to overheat. When your furnace overheats, this shuts down the burner resulting in cold air. Always replace a dirty air filter to ensure your furnace is functioning properly. 

These are a few possible reasons why your furnace is blowing cold air. Be sure to schedule your routine furnace maintenance to ensure your furnace is safe to operate this winter. If you need any assistance with your furnace or home heating equipment, do not hesitate to contact our team at JOB Heating & Air Conditioning.

JOB Heating & Air Conditioning are Furnace and Air Conditioning Experts. They show up on time, deliver on budget, and leave the work area cleaner than when they arrived! They take pride in their work in this city and surrounding area, so nothing means more to us than testimonials from their clients as their preferred plumber in Saskatoon.

‘Your Comfort is Our Concern!’

JOB Heating & Air Conditioning are Trusted Saskatoon Furnace and Air Conditioning Experts

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S & E Trusted Online Directories Inc
TrustedSaskatoon.com
310 Wall St #209
Saskatoon, SK   S7K 1N7
Ph: 306.244.4150

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