What to Do If your Furnace Fan is Constantly Running

What to Do If your Furnace Fan is Constantly Running

Is your furnace fan constantly running, leaving you struggling to get rid of the issue? Have you tried multiple methods to resolve the issue but nothing worked yet? If yes, then this blog post is for you.

No matter what season it is, a malfunctioned furnace is the last thing anyone needs, right? So, if you have noticed that your furnace fan is constantly running, it could be a sign of a problem with your HVAC system. Not only can this be incredibly annoying, but it can also lead to increased energy consumption, increased energy bills, and costly repairs in the long run. But don’t worry because there are many ways you can get rid of this issue and ensure your HVAC unit is working efficiently.

To learn more and schedule HVAC repair service in St. Louis and the surrounding areas, contact the heating and air conditioning experts at Galmiche & Sons today.

Why Is Your Furnace Fan Constantly Running and How Can It Be Problematic For You?

Before we talk about what you should do if your furnace fan is constantly running, let’s understand the reason behind the issue. There are many reasons why a motor or fan may run constantly, including the following:

  • A clogged or dirty air filter
  • Dirty, clogged, or poorly installed ductwork
  • A faulty thermostat
  • A malfunctioning limit switch, etc.

There are multiple reasons why a constantly running furnace fan can be a problem for you. For starters, it can increase your energy consumption and increase your energy bills. Similarly, it can also cause unnecessary wear and tear to your HVAC unit, leading to expensive repairs in the future.

What Should You Do If Your Furnace Fan Is Constantly Running?

Is Your Furnace Fan Running Constantly?

There are a couple of things that you can do if your furnace fan seems like it is constantly running. Some of these may be DIY repairs, while others require the help of professionals.

  • Replace the dirty air filter: If your furnace fan constantly running, make sure to check your unit’s air filters and ensure they are free from all kinds of dirt. To keep your furnace running smoothly, be sure to replace the air filter regularly. This will help maintain proper airflow and avoid putting too much strain on the fan motor. Not doing so can cause your HVAC system to work harder than necessary.
  • Inspect your ductwork: Additionally, you can also look at the ductwork and ensure it is not damaged. Poorly installed or broken down ductwork can often put too much strain on your fan’s motor, making it run constantly. Consider having a professional inspect your ductwork for any issues that may be causing the constant running.
  • Inspect the limit switch: A malfunctioning limit switch can be another reason that keeps your furnace fan constantly running. A limit switch is designed to turn off the fan once your desired temperature is reached. However, if this switch is not functioning properly, the fan may continue to run constantly. So, make sure to hire an HVAC technician to get the limit switch inspected.

Contact Galmiche & Sons for HVAC Repair in St. Louis

A furnace fan constantly running can be a big annoyance. Following these tips will help diagnose the possible issue and resolve it before it gets worse. Always remember, if you don’t know how to inspect your HVAC unit or aren’t comfortable handling these tasks on your own, it is smart to seek help from a professional technician.

At Galmiche & Sons, we have the experience and expertise to handle any issues with your HVAC system, including a constantly running furnace fan. Founded in 1950, we have been providing top-notch HVAC services to the residents of St. Louis and the surrounding areas over the years. Contact us to learn more or schedule your HVAC maintenance appointment!

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