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As the winter season approaches, a properly functioning heating system goes from being a nice-to-have item to an absolute must-have necessity. Not only does your heating system provide the comfort of a warm home, but it’s also a lifeline that safeguards you and your family from the harsh winter temperatures. Grissom Heat & Air understands this importance, which is why we’ve dedicated ourselves to delivering exceptional heating and cooling system repair services. With many years of experience in the industry and a track record of satisfied customers, we’re not just a service provider, we’re a community partner committed to your well-being.

Common Heating System Issues

Heating System Services in Knoxville, TN


Being a homeowner or property manager is a rewarding but often challenging experience, particularly when it comes to maintaining essential systems like you’re heating and cooling equipment. While every system is unique, there are certain problems that commonly plague households:

  1. Strange Noises – When your furnace begins to sound like a haunted house with clanking, squealing, or banging noises, it’s often a sign that something has gone wrong. These sounds can result from wear and tear or even a need for lubrication of certain parts. Ignoring these noises can lead to more complex issues down the line.
  2. Uneven Heating – Walking from a cozy living room into a chilly bathroom is not just uncomfortable, but also an indication that your heating system is not distributing heat evenly. This can be due to a variety of factors, including issues with duct work, blower fans, or even your home’s insulation.
  3. Increased Energy Bills – A sudden spike in your energy bills could be your heating system waving a red flag. Inefficient systems work harder, consuming more energy, which becomes evident in your monthly energy bills. Parts like the blower motor or heat exchanger could be failing and need urgent attention.
  4. Frequent Cycling – If your furnace or heat pump is cycling off and on more frequently than usual, it’s not just annoying but could be a sign of an incorrectly sized system, clogged filters, or an electrical issue.
  5. Unpleasant Odors – Unusual smells, particularly burning or musty odors, can point to electrical problems or even mold growth in the duct work. In both cases, it’s crucial to address the issue promptly.

Signs It’s Time to Call the Pros

Recognizing early warning signs can prevent your minor issues from spiraling into expensive repair jobs. Here are some additional red flags:

  1. Erratic Temperatures – If some areas in your house feel like a sauna while others are more like a fridge, this could indicate a failing thermostat or an issue with the heating elements.
  2. Age of the System – Heating systems typically last around 15 to 20 years. If your system is reaching the end of its lifespan and showing frequent signs of malfunction, professional intervention is necessary.
  3. Lack of Heat – No heat on a cold day is more than inconvenient; it can be dangerous.
  4. System Malfunctions – Whether your heating system is not responding to thermostat adjustments or experiencing frequent shutdowns, professional assistance is crucial.
  5. Water Leak – Leaking water around the heating unit may indicate a broken component and requires immediate professional repair.

Benefits of Professional Repair Services

While it may be tempting to attempt to repair your heating system yourself, there are some compelling reasons why calling in the pros is a much better idea:

  1. Expert Diagnosis – A professional can identify the root cause of the problem, ensuring that it’s completely resolved.
  2. Long-term Cost Savings – Attempting DIY fixes might seem like a good idea at the moment, but errors can be costly. Professionals ensure that the issues are resolved correctly, preventing future problems.
  3. Safety – Professional technicians are trained to identify and fix issues safely, whether they are dealing with gas lines or electrical faults.
  4. Peace of Mind – With certified professionals handling your heating system, you can be assured of both the quality of their work and the longevity of the repair.
  5. Warranty Maintenance – DIY repairs can sometimes void your system’s warranty. Professional repairs will keep it intact, saving you money in the long run.
  6. Environmental Benefits – A well maintained system is more energy efficient, thereby reducing your home’s carbon footprint.


Your heating system isn’t just about comfort-it’s about ensuring the safety and well-being of everyone under your roof. It’s vital to recognize the signs of a faltering heating system early to prevent more severe issues down the line. Professional repair services, especially those from a reliable and experienced provider like Grissom Heat & Air, offer long-term cost savings, a focus on safety, and peace of mind that you can’t put a price on.

If you notice any of the red flags mentioned above such as odd noises, temperature imbalances, or unusually high energy bills, don’t ignore them. These could be your heating system’s way of signaling for help. Whether you require standard heating system repair, heat pump system repairs, commercial heating system repair, or any other heating and cooling repairs, Grissom Heat & Air has you covered.

For over 39 years, Grissom Heat & Air has been a leading provider of reliable HVAC systems in Knoxville, TN, dedicated to ensuring customer comfort. Our expert technicians offer an array of residential and commercial services, including maintenance and repair, inspections, and specialized services like heat pump repair. We also provide comprehensive AC services, from troubleshooting and repair to new installations. With a focus on quality and efficiency, we use state-of-the-art tools and procedures. We offer timely consultations and estimates to help you choose the right HVAC solutions for your situation. Our consistent commitment to excellent service has made us a top choice in the industry for over three decades.

For more information about the products and services we provide, contact us via our website or give us a call at 865-225-9207. We look forward to serving you!