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Heed These Signs of a Furnace in Disrepair


As an Illinois homeowner, the last thing you should have to worry about is a heating system that is going to break down at any second. Fortunately, if you’ve kept up on your annual furnace maintenance appointments with a trained and experienced professional, you won’t need to worry about this. Also, if you know the signs to watch out for that your furnace is, in fact, in disrepair, you can keep the system in good shape.

Oh, what’s that? You don’t know what signs to watch out for? Well, then you’ve come across the right blog post!

Before we continue though, we want to mention the “M” word again. That’s right, maintenance. Whether you have a gas-powered furnace or an electric one in place, you should have professional tune-ups done every year. This helps your heater work as effectively and efficiently as possible throughout its entire lifespan and can help you avoid the majority of surprise repair needs that ill-maintained furnaces face.

Still, though, it’s good to know those aforementioned signs. So, read on!

Loud or Unusual Sounds

At times, it can be difficult to spot the sign of a heating system problem if that problem isn’t actually getting in the direct way of your comfort. An odd noise coming from the cabinet of your furnace, for example, might be something that you brush off at first. If it’s not impacting how hot the air is coming through your vents, why bother addressing it?

Well, because it could be the sign of something that will grow into a much bigger problem later on. For example, a buzzing noise can indicate something wrong with your electrical connections, leading to a potential fire hazard. A screeching sound may signal a worn-out fan belt that could break at any moment. Popping or banging can be the sign of a problem with the furnace burners.

Higher-Than-Average Utility Bills

Take a look at your energy bills… are they much higher than they were this same time last year? If so, it’s a sign that something in your home is working inefficiently, and it could very well be your furnace! After all, your HVAC systems account for half of all your energy use.

Then again, maybe this is a colder, longer winter and your furnace is just running longer than usual, right? This might be the case! If you can, ask your neighbors what they’re paying. If your bills are still higher, then it probably is a sign that something is amiss with your heating system and you should have it checked out by a pro.


Short-cycling is the name given to the process where an HVAC system cycles on and off rapidly, never actually completing a full heating (or cooling) cycle. Not only is this the sign of something already gone wrong within your heating system, but it can also lead to further problems as it exacerbates wear and tear.

These are just a few of the symptoms of a furnace in disrepair! If your heating system is acting up in any way, it’s never a bad idea to give our team a call to schedule an inspection.

For reliable furnace repair in Wilmette, IL, look no further than Shavtiz Heating and Air Conditioning. Contact us today!

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