Why Is My Furnace Blowing Cold Air?

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A furnace is the best artificial creation that keeps us warm and comfortable throughout the harsh winters. However, a furnace blowing cold air instead of warm air sounds like an absolute nightmare! 

While there can be many possibilities behind the malfunctioning heating capacity of the furnace, in most cases, you need to call a Furnace repair near me right away!

Common reasons behind a furnace blowing cold air

Malfunctioning flame sensor

If too much dirt and debris accumulate on the flame sensor, it will not function properly. Fortunately, you can address this problem quickly by cleaning it. However, if cleaning does not help the issue, get in touch with a professional.

Dirty valves

If a lot of dirt and debris build up in the valves, the system fails to operate correctly. But, especially if it’s been a while since you last deep cleaned your furnace valve, all it takes is a thorough cleaning. 

Malfunctioning thermocouple

The thermocouple is a sensor that controls the ignition and gas valve of the furnace. If it starts malfunctioning, then the furnace begins to blow cold air. Although you can adjust it correctly, a damaged thermocouple needs to be replaced by a professional emergency furnace repair near me.

Empty fuel tank

An empty fuel tank or insufficient fuel will prevent the furnace from generating heat, causing it to circulate cold air instead. Therefore, it is highly recommended to keep some reserve oil stored in your home garage all the time. 

Thermostat issues

One of the most common thermostat issues is having it switched ‘ON’ instead of ‘AUTO.’ This would cause the fan to operate without producing any heat. Another possible cause can be that the thermostat isn’t compatible with your system. Such issues often occur when homeowners attempt to install a thermostat on their own.

Are you facing any of the issues mentioned above? We can fix it; call us today at (214) 392-7584.

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