February 8, 2021
Furnace Cold Air

Without a furnace sending warm air throughout your home, the winters in Kalispell would be almost unbearable. That’s why it can be so frustrating when your furnace runs but blows cold air instead of hot air. At General Sheet Metal, Inc., this is a frequent problem that we encounter in customers’ homes. Here are a few of the common culprits behind this problem.

Extinguished Pilot Light

In a gas furnace, the pilot light is responsible for igniting the gas in the burner when the furnace turns on. Both electronic and standard pilot lights can go out, although standard pilot lights, which are small flames that are always burning, tend to experience the most problems. If you aren’t comfortable re-lighting the pilot light yourself, feel free to call General Sheet Metal, Inc..

Dirty Air Filter

Sometimes, the biggest problems have the simplest solutions. If your furnace is blowing cold air, make sure to check your air filter to ensure it’s not dirty. A dirty air filter can prevent air from flowing through your furnace and reaching the heat exchanger. Eventually, this will cause the heat exchanger to overheat until a safety switch kicks in and turns off the burners on your furnace. This allows the blower fan to continue running without the furnace heating the air as it flows past, resulting in cold air in your home.

Cracked Heat Exchanger

A cracked heat exchanger is a much more serious problem and will typically require the assistance of General Sheet Metal, Inc.. This component of your furnace is responsible for transferring the heat from the burner to the air from the supply duct. As your furnace ages, the metal in the heat exchanger can crack from constant temperature changes. In most cases, a cracked heat exchanger requires a new furnace, although the experts at General Sheet Metal, Inc. will be able to tell you for sure.

No Problem Too Big or Small

From dirty air filters to cracked heat exchangers, the pros at General Sheet Metal, Inc. can take on any furnace problem. Our technicians can repair, maintain, and install all types of furnaces and air conditioners to help keep you comfortable. We also proudly offer fabrication services to help create custom ductwork to improve your home’s comfort. As a business accredited by the Better Business Bureau, you can count on us to treat you with respect every time we serve you. To learn more about furnace problems, contact us at General Sheet Metal, Inc. today.

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