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

October 07, 2015

One of the most routine issues that we encounter at Aramendia Plumbing, Heating and Air, A Service Experts Company in San Antonio is dusty air filters. They can seem like a very insignificant piece of the whole home comfort puzzle, but the role they play in helping us maintain comfort is a lot bigger than most homeowners notice. Regardless if it is cooling season or heating season, having a dirty air filter can cause a number 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 few of the side effects you could encounter:

  • Diminished airflow. This is easily the largest headache you’ll recognize when your home’s air filter is badly clogged. The longer the air filter goes without being switched, 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 significantly harder to provide you with the same amount of air.
  • Frozen coil. If your system is operating harder due to a clogged air filter, you also run the danger of having the cooling coil freeze inside of the system, because it’s running overtime to give you cool air.
  • Total loss of cooling or heating. This is also a probability if your air filter goes unattended for months and months on end. In essence, you will have worked your system so hard that something gives out or wears out and needs to be replaced or serviced.
  • Short cycling. Short cycling means the heating and cooling system turns on and off all the time. When your system short cycles, it could 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
  • Lower energy efficiency
  • Diminished air quality
  • More 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 get around any potential damage that could come with a dirty air filter. If you don’t know where your home’s air filter is located or you simply have a question about the number of air filters available, give Aramendia Plumbing, Heating and Air, A Service Experts Company a call at 210-404-4233 or schedule an appointment online.

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