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5 Reasons Why Your Furnace Is Blowing Cold Air

When you get back home from a hard winter’s day, the last thing you want is for your furnace to be blowing cold air. There are several reasons this can happen from the simple to the severe.

  1. Thermostat Troubles
    If you installed your thermostat yourself, you may have one that doesn’t work with your furnace. An expert in HVAC repair from Aire One Heating and Cooling can help you find the right thermostat for your needs. Alternatively, it could be as simple as old, dying batteries, which can be easily replaced. Another common issue is simply leaving the fan in the “on” position instead of the “auto” position.
  1. The Air Filter Hasn’t Been Changed
    If the air filter gets too dirty and covered with dust, it can cause the furnace to overheat and shut the burner off. All you have to do is replace the air filter and restart the furnace. Make sure you are changing your air filter every 3 months to avoid this problem from happening.
  1. The Pilot Light Is Out
    This is a fairly common issue that could be caused by a gust of cold air or a gas leak. If you suspect a gas leak, contact a professional immediately. Otherwise, you can contact Aire One Heating and Cooling, serving locations across Ontario, to have the pilot light relit. Alternatively, if the relit pilot keeps going out, there may be a problem with the furnace’s thermocouple. This sensor controls both the ignition and the gas going into the furnace. You may require a furnace repair from Aire One Heating and Cooling, serving locations across Ontario.
  1. Air Leaks in the Ducts
    Holes or tears in your ducts could be letting heat escape before it reaches your vents in the living room or bedroom. In that case, your ducts will have to be repaired, and you should have it done by an HVAC professional from Aire One Heating and Cooling.
  1. Dirty Burners or Flame Sensors
    This is just the result of dust, dirt or grime getting onto these objects and keeping them from lighting up the furnace. In either case, you’ll need the help from an expert. Call Aire One Heating and Cooling, serving locations across Ontario, for a furnace repair near you.
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