Why is My Furnace Making Funny Noises?

Furnace, Heating, HVAC, Tips & Tricks

Sometimes, when a home heating system makes unusual sounds, it can be a clear warning sign that a homeowner needs to heed to prevent further problems and even all out system failure. Then again, sometimes, some sounds are completely normal.

To help you recognize the difference between harmless furnaces noises and those that are warning signs of trouble, we at Troy Furnace & Air Conditioning put together the following:

Squealing or Screeching Sounds

If you’re hearing screeching or squealing sounds that remind you of nails on a chalkboard, or metal scratching, and it’s coming from your HVAC equipment, it could mean your blower wheel is having problems. The wheel might have come loose from the motor shaft. Or, it may be broken or hitting against the sides of the system. In any case, screeching noises often indicate a bad belt or motor blower.

Loud Humming Noises

Humming noises coming from a heating system, if unusually loud, could be from a malfunctioning starting capacitor or some other problem revolving around the motor itself. If this doesn’t get looked at by a technician, it could progress into a major blown problem. Keep in mind, you should hear a faint humming noise the day your system is installed. If it becomes obviously louder, it might be a reason for concern.

Popping or Banging Noises

Mild banging sounds or popping noises are fairly normal with unit’s that utilize ductwork to transport treated air. Because air ducts are made from sheet metal, they contract and expand when they’re hot or cold. Nevertheless, if you are hearing excessively loud (louder than usual) popping or banging noises and your home isn’t getting the heated air or cooled air you need, there might be a problem with the system’s ignition. Sometimes, when a heating system’s burners are dirty, gas can escape into the unit’s housing. Because it won’t be able to light at the burner if it is escaping, this gas can build up and cause an explosion. In any case, this problem can be a highly dangerous one. If this is something your heating system is doing, please shut it down and call us without delay.

The “Thwapping” Noises

If you hear a “thwapping” noise, or smacking sound that’s like a playing card flapping against a bicycle spoke, there’s probably something lodged or stuck in the blower’s blades. If this is the case and the object gets loose, it could go into the housing and damage something else.

If your furnace is giving you warning signs, call us today!

Residential heating systems are complex machines that are intricate; they utilize a whole host of parts and equipment, and they use fuel to generate heat. If you’re hearing any other unfamiliar sounds — thumping, squealing, rumbling, banging, loud whistling, etc. — it’s something you should take seriously. We suggest turning the unit off and giving us a call right away to avoid danger and further damage. If your furnace is not heating properly and is making noises, call Troy Furnace & Air Conditioning today at (937) 230-5221.

Troy, OH

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Why Choose Troy Furnace & Air Conditioning for HVAC Services?

The home comfort team here at Troy Furnace & Air Conditioning understands that there are many heating and cooling companies throughout the Miami Valley area. And a lot of them might seem like they’re cheaper.  However, you get what you pay for when it comes to comfort systems and HVAC-related work. Just because an HVAC contractor is cheaper doesn’t mean you’re going to save money.

At Troy Furnace & Air Conditioning, our level of air care goes above and beyond what other HVAC companies consider “business as usual.” We truly believe that comfort is our calling, and we want you to remember that if your comfort machine becomes compromised. One call is all it takes, and we’ll take it from there.

Because we are homeowners and have families of our own, we believe we understand our customers’ home comfort and air quality concerns better than anyone in this business. And we also understand how every dollar counts when working with a budget. We offer online deals and convenient financing options.

On every job we do, we always guarantee customer satisfaction across the board. Our long list of HVAC services and products includes everything related to home comfort equipment and Indoor Air Quality technology — including emergency repair services, heating and cooling system installation and replacement, humidifier installations, diagnostics, and more. We also offer heat pump services!

Get a free online estimate from the HVAC experts in Troy, OH! We've installed, repaired and serviced every brand of equipment you can imagine. We know just what to do! We offer low-cost diagnostics on all types of HVAC equipment. And, we offer seasonal maintenance or preventative maintenance at competitive prices with service agreements at discounted rates. We are Troy’s one-stop 24-hour emergency HVAC repair service, assistance every day of the year. You shouldn’t have to compromise comfort or quality to cut costs. We encourage you to see for yourself why our team of NATE-certified technicians is considered the heroes of HVAC.

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