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Why Is Your Furnace Blowing Cold Air Instead of Heat?

This guide outlines the potential causes of your furnace blowing cold air and assists you in determining whether you can resolve the issue yourself or whether you need to contact an HVAC specialist for furnace service in Lasalle.

Causes Of Cold Air Blowing From A Furnace

There are several reasons why furnaces may blow cold air. Some of these problems can be resolved by the user, while others could need expert assistance.

  • Clogged Or Dirty Air Filter: A clogged air filter could cause your furnace to vent cold air. Your furnace can overheat and shut down, unable to blow air across the heat exchange coils and leaving you with only cold air. Most home improvement stores provide reasonably priced air filters, but if unsure, contact Affordable Heating & Cooling Inc., the furnace repair experts in Lasalle.

  • The Furnace Requires More Time To Warm Up: If you’re using your furnace for the first time this year, you might need to give it a little extra time to warm up. It can take time for the system to fully heat up, much like when you turn on the shower. If your air seems cold after 10 to 15 minutes, then look for professional help.

  • The Issue With The Pilot Light: If you haven’t used your furnace all summer, a dirty valve or even a powerful draught may be to blame for this pilot light going out. For most homeowners, relighting a pilot light is a fairly simple procedure, and frequently, the directions are posted directly on the appliance side.
    Call our furnace specialist to check for additional problems in the system if the light keeps going out despite being relit.

  • Lack Of Or Poor Gas Supply: If you have a gas furnace, it’s possible that the burners aren’t getting a continuous flow of gas. The furnace won’t be able to produce heat if your gas supply is cut off or just insufficient, but it may still run the blower, producing cold air.
    If the problem affects the entire house, contact your gas provider; if it only affects the furnace, contact our specialist for furnace repair in Lasalle.

  • Damaged Or Leaking Air Ducts: Using a network of ducts that run through your walls, your furnace typically circulates hot air throughout your house. The ducts may have a significant leak that enables air to escape if you can tell that your furnace is producing hot air but that the vents are not letting it out into your home.

Join Hands With Us To Create A Comfortable Space

If you experience serious issues with the furnace, don’t attempt to fix your furnace alone; call us to have an HVAC specialist assist you in ensuring your furnace is repaired. After the repair is finished, Affordable Heating & Cooling Inc. experts can also perform preventive maintenance to ensure your furnace remains in good working condition. Call us at 519-966-9960 for furnace service in Lasalle.