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

October 07, 2015

One of the most routine problems that we hear about at Stark Services in Haltom City is dirty air filters. They might seem like a very tiny piece of the whole home comfort puzzle, but the role they play in helping us maintain comfort is a lot greater than most homeowners recognize. Regardless if it is cooling season or heating season, having a clogged air filter can cause a host of problems for your heating and AC system.

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

  • Decreased airflow. This is easily the largest headache you’ll notice when your home’s air filter is severely clogged. The longer the air filter goes without being changed, 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 give you the same amount of air.
  • Frozen coil. If your system is running 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 neglected 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 more than it should. When your system short cycles, it may overheat or break down from the added work, possibly causing damage to your system.

In addition to these, you can also expect:

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

If you’re not sure when you last changed your air filter, it may be a good time to do so in order to get around any likely damage that could 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 have, give Stark Services a call at or schedule an appointment online.

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