Few things are more frustrating on a chilly day than turning on your heat and getting a blast of cold air instead. Before you panic—or pile on every blanket in the house—there are a few simple checks you can make that might solve the problem quickly. And if those don’t fix it, our team is here to help with fast, reliable furnace repair in Kerrville, TX so you can get warm again right away.
Start with Your Thermostat
Your thermostat is the command center of your heating system, so it’s a smart first stop. Make sure it’s set to “Heat” and not accidentally switched to “Cool” or “Fan.” If the fan is set to “On,” your furnace will blow air continuously—even when the heat isn’t running—which can feel like cold air coming from the vents. Switch it to “Auto” so the fan only runs during a heating cycle.
It’s also a good idea to check the thermostat’s batteries. Low or dead batteries can cause incorrect readings and prevent the heating system from responding properly. Replacing them is quick, easy, and sometimes all it takes to solve the issue.
Check Your Air Filter
A dirty air filter can restrict airflow so severely that the furnace overheats and shuts off its burners as a safety measure. When that happens, you’ll feel cool or lukewarm air blowing instead of heat. Pull out your filter and inspect it—if it’s coated in dust or looks dark and clogged, replace it. A fresh filter not only restores proper airflow but also protects your furnace from unnecessary strain.
Make Sure the Furnace Has Power and Gas
If your furnace has stopped producing heat entirely, double-check its power source. Ensure the furnace switch (usually located nearby) is in the “On” position, and inspect your home’s circuit breaker to make sure it hasn’t tripped. For gas furnaces, confirm that the gas valve is open. If you smell gas or suspect a leak, leave the home immediately and call emergency services—never try to investigate further on your own.
When Simple Fixes Aren’t Enough
If your thermostat settings look good, your filter is clean, and power isn’t the issue, the underlying cause may be something that requires expert attention. Common problems include malfunctioning ignition systems, failing blower motors, clogged condensate drains, heat exchanger issues, or problems with the control board.
These components are essential for safe and effective furnace operation, and trying to diagnose or repair them without the proper training can be dangerous and could lead to more extensive system damage.
Why Calling a Professional Matters
A furnace that’s blowing cold air sends an important message: something isn’t working correctly. Ignoring it or attempting DIY repairs can escalate minor problems into major breakdowns. A licensed HVAC technician can quickly pinpoint the issue, perform the necessary repairs safely, and ensure your home’s heating system runs as efficiently and reliably as possible.
Our team is equipped to diagnose the problem accurately and restore your heat fast, so you don’t have to suffer through a chilly home—or risk further damage to your furnace. If your furnace is blowing cold air and the basic checks don’t solve the problem, don’t wait. Reach out to us right away, and we’ll get your heating system back to keeping you warm and comfortable.
Contact D’Spain Sales & Service to talk to a member of our team about furnace repair in Kerrville, TX.
