Why Is My Heating System Blowing Cold Air?

Fixing Heating System That's Blowing Cold Air

Winter in Albany, GA, may not bring extreme cold. But when temperatures drop, the last thing you want is for your furnace or heat pump to blow cold air. This alarming issue can turn your cozy home into a chilly discomfort zone. Let’s explore four possible reasons your heating system is blowing cold air rather than warming your house.

Incorrect Thermostat Settings

One of the most straightforward explanations could be your thermostat settings. Ensure the thermostat is set to “heat” rather than “cool” or “fan.” If it’s in the “on” position, the fan may blow continuously, even when the system isn’t heating. Setting it to “auto” ensures the fan only runs when the furnace or heat pump is actively producing warm air.

Pilot Light or Ignition Issues

If you rely on a gas furnace, a pilot light or ignition failure can lead to cold air. Without a properly functioning pilot light or electronic ignition, the gas won’t ignite, meaning the furnace cannot produce heat. Regular maintenance can help prevent this issue, but a sudden problem might require professional repair to avoid further damage.

Dirty Air Filters

Blocked or dirty air filters can choke the airflow in your heating system. When airflow is restricted, your heating system may overheat and shut down, blowing cold air as a safety measure. To prevent this, ensure you change the air filter regularly, especially during peak usage in the winter months.

Heat Pump in Defrost Mode

Heat pumps, which are popular in milder climates like Albany, GA, occasionally enter defrost mode to prevent freezing in cold weather. During this mode, they may temporarily blow cold air. If your heat pump seems stuck in this mode, it might require a service technician’s attention to restore normal function.

Don’t wait for the chill to become unbearable. Understanding these common issues can help you troubleshoot your heating system quickly so that you can contact Walker Brothers Heating & Air Conditioning to schedule a repair or replacement.

Image provided by iStock

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