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Why Is My Furnace Blowing Cold Air in Big Lake, TX?

furnace needs repair

When the cold season kicks in, you need your furnace in Big Lake, TX, to work at optimal capacity. However, you might be in for a surprise when you turn on your furnace only for cold air to blow out of the vents. Below are some common reasons why your furnace could be blowing cold air.

The Furnace Hasn’t Warmed up

It’s normal to get cold air through the vents when you first turn on the heating system after a period of inactivity. It takes a few minutes for the heating system to warm up, and if the air feels warm after a while, there isn’t any cause for alarm.

Check Your Thermostat Settings

If the air blowing through the vents is persistently cold, check your thermostat setting and adjust it to AUTO mode from the ON mode. When the thermostat is set to ON, the fan will run even if the heating system isn’t heating. Turning the thermostat to AUTO will ensure the fan only blows when the furnace is heating the air.

Dirty Flame Sensor

Pilotless ignition furnaces utilize a flame sensor to ensure the heating system continues burning once it starts. However, when the flame sensor is dirty, the furnace can start heating but then quickly turn cold.

The Pilot Light Is Out

It’s not uncommon for a furnace pilot light to blow out at some point during its service. When that happens, your heating system can’t light up and is unable to heat your home. You can follow your user manual to ignite your model’s pilot light; if this isn’t possible, request a certified technician to help identify if there are underlying issues.

Dirty Air Filter

Dirty filters could contribute to the problem since they block airflow into your furnace. Restricting the airflow can cause your heating system to overheat and eventually produce only cold air. Therefore, you should replace the air filters to restore your furnace to optimal operation.

For any problems with your furnace, you can depend on the experts at Bowles Heating and Cooling. We offer quality air conditioning and heating services. Contact us at Bowles Heating and Cooling today for reliable heating replacement services.

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