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Why is My Furnace Making My Home in Oakton, VA, Colder?

No homeowner wants their furnace to develop problems during the coldest period of the year. One of the most common furnace issues is blowing cool air. Below are several reasons your furnace is lowering your home’s temperature in Oakton, VA.

Blocked Air Filter

When contaminants block an air filter, there’s a restriction on proper airflow. Airflow restriction results in your furnace running longer, causing the system to overheat.

As a precautionary measure, the limit switch will turn off the burners, and the fan will continue running to cool the system. Consequently, only cold air will circulate in your home.

A blocked filter also increases wear and tear to your system’s components. Consider changing your air filter every month to keep your system working smoothly.

Incorrect Thermostat Settings

Your blower fan may run when the furnace is heating your home or when the system is not running, based on your thermostat settings. Your thermostat contains two fan settings: an “on” setting and an “auto” setting.

If you use the “on” setting, the blower fan will continue running even when the furnace isn’t heating your home. The fan will distribute cold air.

Consider utilizing the “auto” setting. This setting initiates the blower fan to run only when your system is heating your home, helping to spread warmth throughout your home.

Ignition Problems

If your gas furnace isn’t heating your home, your ignition system could be to blame. Consequently, your system cannot light the fuel to provide heat for your home. Seek professional repair services for a proper diagnosis.

Reach out to Brennan’s Heating & Air Conditioning for outstanding heating services during this cold period. We will tailor a unique solution for your furnace rather than a one-size-fits-all approach. We look forward to ensuring your family stay warm for a fair price.

Image provided by iStock

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