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

October 07, 2015

One of the most basic concerns that we come acress at Service Experts Heating & Air Conditioning in Shreveport is filthy air filters. They may seem like a very small piece of the whole home comfort puzzle, but the role they play in helping us control comfort is a lot larger than most homeowners realize. Regardless if it is cooling season or heating season, having a dirty air filter can cause a host of issues for your heating and AC system.

So what exactly happens when you forget to swap out your air filter? Here are a just a couple of the side effects you might encounter:

  • Decreased airflow. This is easily the biggest issue you’ll notice when your home’s air filter is severely 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 running overtime to provide you with cool air.
  • Total loss of cooling or heating. This is also a possibility if your air filter goes unchanged 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 more than it should. When your system short cycles, it could overheat or break down from the added work, potentially causing damage to your system.

In addition to these, you can also expect:

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

If you’re not sure when you last swapped out your air filter, it may be a good time to do so in order to avert any likely damage that might 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 available, give Service Experts Heating & Air Conditioning a call at or schedule an appointment online.

Contact Us