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

October 07, 2015

One of the most basic problems that we hear about at Midway Services in Clearwater is dirty air filters. They may seem like a very insignificant piece of the overall home comfort puzzle, but the role they play in helping us control comfort is a lot greater than most homeowners notice. Regardless if it is cooling season or heating season, having a filthy air filter can cause a host of concerns for your heating and AC system.

So what exactly happens when you neglect to change your air filter? Here are a just a handful of the side effects you may encounter:

  • Diminished airflow. This is easily the biggest issue you’ll recognize when your home’s air filter is very 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 a lot harder to leave you with the same amount of air.
  • Frozen coil. If your system is working harder because of a dirty air filter, you also run the danger of having the cooling coil freeze inside of the system, because it’s operating overtime to give you cool air.
  • Total loss of cooling or heating. This is also a threat if your air filter goes neglected 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 can overheat or break down from the added work, potentially causing damage to your system.

In addition to these, you can also expect:

  • A shorter equipment lifecycle
  • Reduced energy efficiency
  • Lower 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 potential damage that may come with a filthy 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 Midway Services a call at 727-219-2471 or schedule an appointment online.

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