Causes of Furnace Failure to Watch Out For

March 26, 2019 Published by Leave your thoughts

As long as you stay on top of your furnace maintenance each year, you shouldn’t really have to worry about the equipment failing on you during the middle of winter when you’re most in need of heat. However, there are still some situations in which a furnace could fail. The good news is that most of these failures are preventable as long as you know the most common causes of failure and the steps you can take to prevent them from becoming an issue.

Here are just a few examples from a company specializing in heating repair in Lexington, KY of the most common causes of furnace failure:

  • Dirty filters: Air filters in a furnace will collect dust, dirt and other forms of debris over time—this is just a part of the general wear and tear that furnaces experience. They are designed to remove this debris from the air so it doesn’t get circulated from your home. There will come a point in time where you need to remove the filter (or clean it, if it’s a reusable filter). At a certain point, the filter becomes so clogged that it forces the furnace to work harder to heat your home, leading to potential overexertion of the furnace that could result in it wearing out. Therefore, make sure you replace your air filters every few months, if not more frequently.
  • Failure of the blower motor: The blower motor is what pushes the air through your ducts and around your home. If this component fails, the hot air simply won’t be pushed through the ducts, meaning it won’t reach the rooms in your home that need to be heated. The blower can fail from becoming clogged with debris or from being overused. Duct cleaning can resolve the former issue, while regular furnace tune-ups can resolve the latter.
  • Thermostat problems: Furnace thermostats can fall out of calibration or break, resulting in the furnace failing to trigger and operate as needed. It may also result in the furnace actually kicking in too frequently. This might not cause problems in the short term, but in the long run, overuse of the furnace can wear it out faster, leading to mechanical problems and potentially necessitating earlier replacement.
  • Ignition failure: The igniter (or pilot light, in older gas furnaces) is a critical component of the furnace, as it’s what lights up the burners that create the hot air to heat your home. If the igniter isn’t working properly, then you simply won’t be able to create hot air. You can check to see if the pilot light is operational and relight it yourself if needed, but you should still have it looked at as part of your annual furnace maintenance.

These are just a few examples of some of the most common causes of furnace failure. To learn more about these issues and about how they can be resolved with heating repair in Lexington, KY, please contact the team of HVAC professionals at Cross Heating & Air Conditioning Services, LLC today.

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