What Happens When You Don't Change Your Furnace's Air Filter

October 07, 2015

One of the most common concerns that we hear about at Service Experts Heating & Air Conditioning in Gainesville is dusty air filters. They might seem like a very small piece of the whole home comfort puzzle, but the role they play in helping us create comfort is a lot greater than most homeowners notice. Regardless if it is cooling season or heating season, having a dirty air filter can cause a number of concerns for your heating and AC system.

So what exactly happens when you don’t remember to swap out your air filter? Here are a just a handful of the side effects you might encounter:

  • Reduced airflow. This is easily the greatest problem you’ll notice when your home’s air filter is very clogged. The longer the air filter goes without being swapped out, the more dirt, dust and other particles build up. Of course, this prevents air from passing through the filter as it should, meaning your system is working a lot harder to provide you with the same amount of air.
  • Frozen coil. If your system is operating harder because of a dirty air filter, you also run the risk of having the cooling coil freeze inside of the system, because it’s working overtime to give you cool air.
  • Total loss of cooling or heating. This is also a threat if your air filter goes unattended for months and months on end. In essence, you will have worked your system so hard that something breaks or wears out and needs to be replaced or serviced.
  • Short cycling. Short cycling means the heating and cooling system turns on and off excessively. When your system short cycles, it may overheat or break down from the added work, which could end up causing damage to your system.

In addition to these, you can also expect:

  • A diminished equipment lifecycle
  • Decreased energy efficiency
  • Lower air quality
  • Greater dust and debris
  • Lack of comfort

If you’re not sure when you last switched out your air filter, it may be a good time to do so in order to avert any possible damage that may come with a clogged air filter. If you don’t know where your home’s air filter is located or you simply have a question about the variety of air filters we carry, give Service Experts Heating & Air Conditioning a call at or schedule an appointment online.

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