An In-depth Guide to List of Refrigerants and Their Role in HVAC Systems

Choosing the right system to heat your home is crucial for both comfort and energy efficiency, especially in Central Georgia. While the winters are not harsh, they can be damp and chilly. Two of the most common heating options for homeowners are heat pumps and furnaces. While both are deigned to keep your home warm in colder months, they operate in different ways. Because of this, heat pumps and furnaces come with their own set of pros and cons.

Although we don’t see extremely low temps often here in Central Georgia, when the temperatures do drop, your furnace becomes one of the most important appliances in your home. A properly functioning heating system ensures that you stay warm and comfortable during the cold months of winter. However, like any mechanical system, furnaces experience wear and tear over time – and if you don’t know what to look out for, you could be left with a complete system failure when you need it most. If you notice any of the following signs, it may be time to schedule immediate furnace repair to prevent further damage and ensure your home stays warm and safe. Call Buzzell Plumbing, Heating & Air Conditioning today for a furnace inspection to keep your home warm for the rest of winter! 1. Strange Noises Coming from Your Furnace A furnace typically makes some noise as it operates, but loud, unusual sounds can indicate a serious problem. If you hear any of the following, it’s time to call a professional: Banging or booming – This could indicate a delayed ignition , where gas builds up before igniting, causing a mini explosion in your furnace. This can crack the heat exchanger and lead to carbon monoxide leaks. Squealing or screeching – A high-pitched noise may indicate a worn-out blower belt or issues with the motor bearings. Rattling or vibrating – Loose parts or ductwork issues could be the cause. Clicking – A continuous clicking sound could mean a failing ignition system or a faulty flame sensor . Ignoring these noises can lead to major furnace damage or even a breakdown. If your furnace sounds different than usual, don’t wait— call us today and schedule an inspection immediately. 2. Weak or No Airflow from Vents Our furnace should distribute warm air evenly throughout your home. If you notice weak airflow or cold spots, your furnace may have one of these problems: Clogged air filters – Dirty air filters block airflow, forcing your system to work harder and reducing heating efficiency. Replace filters every one to three months. Blower motor issues – If the blower motor is failing, it won’t push air through the ducts effectively. Blocked or leaky ductwork – Holes, leaks, or blockages in the duct system can prevent warm air from reaching every room. Failing fan or belt – If the fan or belt driving airflow is damaged, it needs repair or replacement. If your furnace is running, but your home still feels cold, it’s time to have an HVAC technician inspect and diagnose the problem. 3. Frequent Cycling (Turning On and Off Too Often) A properly functioning furnace should run in cycles, heating your home to the appropriate temperature and then shutting off. If your furnace turns on and off frequently (also known as short cycling ) this could be a sign of: Overheating – A dirty air filter, blocked vents, or malfunctioning components can cause the system to overheat and shut down prematurely. Thermostat issues – A faulty thermostat may misread temperatures, causing the system to turn on and off unpredictably. Improper furnace size – If your furnace is too large for your home, it will heat the space too quickly and shut off before completing a full cycle. Flame sensor problems – If the flame sensor is dirty or failing, it may shut off the burner too soon. Short cycling leads to higher energy bills, increased wear and tear and uneven heating . If your furnace isn’t running in proper cycles, it will save you money to have it repaired! Call us today to schedule an inspection if your furnace is short cycling. 4. Unusual or Burning Smells If your furnace produces any strong or lingering odors, it may be a sign that an urgent repair is needed: Burning dust smell – If you smell burning dust the first time you turn on your furnace for the season, this is usually normal and should disappear quickly. However, if the smell lingers, it could indicate dirty components or an overheating motor . Rotten egg or sulfur smell – This is a sign of a gas leak , which is extremely dangerous. Turn off your furnace immediately, evacuate your home, and call your gas company and Buzzell Plumbing, Heating & Air Conditioning . Electrical or burning plastic smell – This could indicate wiring issues, overheating components or a failing blower motor . Shut off your system and call for a repair. Musty or moldy smell – If your furnace smells damp or moldy, moisture could be trapped in the ducts, leading to mold growth and poor indoor air quality . If your furnace is producing any unusual smells, it’s best to have it inspected by a professional before it becomes a serious problem. 5. High Energy Bills Without Explanation If your energy bills are rising unexpectedly—even though your heating habits haven’t changed—your furnace might be losing efficiency. Some possible causes include: Clogged air filters – Restricted airflow forces your furnace to work harder, consuming more energy. Aging system – If your furnace is over 15 years old , it may no longer operate at peak efficiency. Malfunctioning components – A faulty thermostat, leaky ductwork, or a failing motor can cause your furnace to work overtime. Short cycling – If your furnace turns on and off frequently, it uses more energy than necessary. Ignoring these signs can lead to higher heating costs and potential system failure . Scheduling routine maintenance and addressing repairs promptly can help reduce energy waste and save you money. When to Call Buzzell Plumbing, Heating & Air Conditioning If you notice any of these warning signs, don’t wait until your furnace breaks down completely. Prompt repairs can prevent costly damage, dangerous carbon monoxide leaks and uncomfortable winter nights . Call us if you experience: Unusual noises (banging, screeching, rattling) Weak or inconsistent airflow Frequent cycling (turning on and off too often) Strange or burning odors Unexpectedly high energy bills Regular furnace maintenance can help catch minor issues early , extending the lifespan of your system and keeping it running efficiently. Call Us Today Your furnace is essential to keeping your home warm and comfortable during the winter. Recognizing these warning signs early can help you avoid expensive repairs and potential safety risks. Whether it’s a strange noise, weak airflow or skyrocketing energy bills, don’t ignore the red flags. If your furnace is showing signs of trouble, our expert HVAC technicians in Macon are here to help ! Give us a call at 478-974-5255 for a thorough furnace inspection. For more information about our services and our Warner Robbins location, click the link here .

But how do you know when it's time to stop repairing and start replacing? As your local HVAC pros, we’re here to help you identify the key signs that indicate it’s time for a new furnace, the benefits of upgrading, and what to expect from a new installation. If you have questions, we have answers! Give Buzzell Plumbing, Heating and Air Conditioning a call at 478-209-2591.

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Homeowners in Warner Robins and Macon, GA, paying attention to these signals is crucial. Ignoring them could lead to inefficient performance, higher energy bills, or a complete system breakdown. At Buzzell Plumbing, we've tackled countless noisy water heaters.