Common Furnace Problems Homeowners Might Face

It’s the middle of winter and we all know the main thing we rely on when the weather gets cold are our furnaces. Furnaces are meant to keep your home warm and cozy during the colder months so that you and the rest of your household are comfortable. However, every homeowner runs into the common furnace problem at some point, which can be very inconvenient. Furnaces typically last a long time, but that doesn’t mean nothing will ever go wrong with it.

In this blog, we’re going to help you better understand the common furnace problems you might face as a homeowner and how Intelligent Air Services, LLC can help.

Furnace is Not Distributing Heat

When you think of your heating system, you know its main job is to produce heat. So, if your furnace is not doing that, there’s an issue. Oftentimes, your thermostat might be set incorrectly, which is a quick fix, of course. Be sure to check your thermostat and confirm that it is set to “heat.”

If your thermostat looks fine, there might be a problem with your air filters. It’s no secret that over time dust, dirt, and other debris can clog your air filters, which is why you should check them every 30 days. If your air filters go unreplaced, the debris can clog them, which can prevent warm air from flowing through. If you check your filters and they look dusty or clogged with contaminants, head to your local home improvement store and pick up some replacement filters. Just be sure to check for the correct size filter before purchasing!

Once you’ve confirmed the thermostat and air filters are working but your furnace is still not producing heat, there might be an issue with your pilot light. In this case, it’s best to give us a call at (512) 675-6997.

Strange Noises

All heaters make a subtle noise when they turn on, such as a clicking or low humming. However, if your furnace sounds like it’s taking flight when it turns on, there might be a bigger problem on your hands. Knocking and rattling noises coming from your furnace might indicate that a part has come loose and needs to be adjusted. If you hear a louder noise, such as a rumbling or squealing, there might be a fuel issue. This is when it’s time to call Intelligent Air Services, LLC to come take a look at your furnace.

Furnace Won’t Turn On

All HVAC systems turn off and on automatically when they are working correctly. So, if you notice your furnace isn’t cycling the way it should be, you might have a problem. When your furnace isn’t turning on, you’ll notice your house is getting a bit chillier and is clearly not as warm as it should be when the unit is on. First, check your thermostat and make sure the setting isn’t on “off” or “cool.” If it is, this is why your furnace isn’t turning on. However, if your thermostat is set correctly, a clogged air filter, faulty pilot light, or fuel issue might be why your furnace isn’t turning on.

Randomly Stops Working

If your furnace is running and randomly stops before your home reaches the temperature it is set to, it might have tripped your circuit breaker or it could have a faulty pilot light. Instead of troubleshooting this issue yourself, call your trained technicians at Intelligent Air Services, LLC for help.


If you’ve been dealing with any of the above furnace problems, Intelligent Air Services, LLC is here to help you get your furnace back up and running to ensure a comfortable household all winter long. To schedule furnace repairs, give us a call at (512) 675-6997 or fill out our online contact form to speak with one of our technicians today.