Cold air coming out of your heating vents can ruin an already frigid day. While you may worry that you need furnace repair, some causes of cool air issuing from the ducts are simple and can be resolved yourself. Here's a closer look at how to troubleshoot the issue.

Why Isn't Your Furnace Producing Warm Air?

1. Incorrect Thermostat Settings

Start by checking your thermostat for user issues, such as an incorrect date, time, or temperature setting. Keep in mind that the air coming through your vents may seem cool when you first turn it on and then heat up as the cycle continues. 

Additionally, make sure the fan setting on your thermostat is set to "auto" instead of "on." If it's the latter, the system will continue to distribute air even when the heat isn't on.

2. Dirty Air Filter

When the HVAC system's air filter becomes dirty, it can reduce the amount of air that travels into the furnace. When this happens, homeowners may notice less air coming from their vents, or what's coming through doesn't feel as warm. 

Check this filter regularly for grime and dust and replace it when it's visibly dirty, which will usually be once per season. There may also be a replacement guideline printed on the filter by the manufacturer. 

3. Ignition Problems 

If your furnace isn't heating up, it could mean that the system is struggling to light. Conventional gas furnaces rely on a pilot light, a gas source, and ignitors to create the heat necessary for your system to warm the air. 

The system is designed with a sensor and safety switch to keep your furnace from operating when an ignitor is dirty or malfunctioning, as gas flowing into the home can be dangerous. Ignition problems can also delay the burners, which could prompt cold air to blow through your vents until the system ignites. Schedule furnace repairs if you notice your furnace running, but the burners inside aren't lighting. 

If you're concerned about the temperature inside your home, turn to the furnace repair professionals at Ogeechee Heating & Air in Claxton, GA. For more than 35 years, this trusted team of professionals has been focused on offering comprehensive HVAC installations, repairs, and ongoing maintenance to make homes safer and more comfortable. Whether you need an estimate on a new system or a boost in your current unit's energy efficiency, they'll help you promptly and with an emphasis on customer service. Learn more about their furnace repair services by visiting their website or by giving their office a call at (912) 739-4035.