Furnace Repair

When your furnace breaks down on a cold day, you need a repair service that is fast, reliable, and trustworthy. We provide expert furnace repair for all makes and models to homeowners throughout Ten Mile, TN.

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Top Furnace Repair Contractor in Ten Mile, TN

Affordable AC & Service is the most trusted name for furnace repair in Ten Mile. As a veteran-owned company serving our community with honor since 1989, we are committed to providing honest and effective heating solutions. Our certified technicians have the skill to quickly diagnose and fix any furnace problem, restoring warmth and safety to your home. We provide free estimates and upfront pricing, so you always know the cost before we start. A key benefit of choosing us is our unmatched 5-year labor warranty on all repairs, guaranteeing the quality of our work. We also offer 24/7 emergency service, because we know that furnace failures are never convenient. Trust our team to get the job done right.

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Friendly and on time fix my problem quickly gave me a great deal. I’ll recommend this company to anyone.

Brittney Ewing
July 28, 2025
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The best I definitely recommend them to everyone. And they are very reasonably priced. My elderly father is on oxygen and has health problems. And when his AC stopped working these wonderful people were fast in responding to get it back up and running properly. Thank you guys so much

KiKe
July 25, 2025
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The staff is nice and respectful their prices are reasonable and the tech is very knowledgeable. And the tech was very patient and respectful when explaining what I needed done. I had called because my AC had stopped working, and it was getting too hot for my children and within 2 hours they had already sent a tech to my house and got my AC working again for a reasonable price. Thank you guys so much. I don't know what we would have done. You guys are the best I will definitely recommend you to anyone. God bless

Ramona
July 25, 2025
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My AC hadn’t been working for the past few days. We quoted 2 different companies and they were unreasonably priced. Finally when I contacted Affordable they were able to come out that same day. They were so nice and understanding of mine and my husband’s financial situation and were able to replace our unit the following day for a reasonable price. 10/10 would recommend!

Michelle Maria
July 25, 2025
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When and where

Cat Ladybug
May 6, 2025
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They were very professional, through, and dependable. They even followed up with us after the service . We would highly recommend.

Kathy Matheson
April 24, 2025
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This company is very affordable very reliable. They definitely have excellent prices and a great staff. The technicians are very professional and informational. I am very satisfied with the work they do. And would recommend the company to anybody.

Katelyn Mejias
November 12, 2024
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This company is truly affordable and awesome! When we are ready for a new unit we will be using them. Our a/c went out right before the extreme heat wave. We are new to the area, saw this company online, called and Bobby came out the next morning. He found the issues, fixed them, set us up for service schedule, but most importantly-did not price gouge us nor try the whole "You need a new unit now" salesman stuff as it was not needed at this time. He was extremely informative-told us what to do going forward. Bobby-you saved us big time! THANKS!!!

Teri Apgar
October 15, 2024
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Ginger Carver
August 26, 2024
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My wife and I have an AirBnB on the lake and use affordable ac for anything HVAC. We just had a recent duct cleaning with them and the technician was on time and did an amazing job as always! He cleaned the ducts, sanitized and fogged system and even got rid of some bad smell that randomly appeared. My wife and I are always pleased with affordable ac’s work. We definitely would recommend them to anyone.

Jacob Johnson
June 27, 2023
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I was very impressed on how professional and knowledgeable, they were. They were on time, and the quality of work was excellent and they had best price i came across after calling 2 previous companies. I would recommend Affordable AC & Service to anyone. I give them a 5 star rating!

Maritza Mejias
June 24, 2023
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Furnace Repair Service in Ten Mile, TN

A malfunctioning furnace in the middle of a Tennessee winter is a serious problem that demands immediate attention. At Affordable AC & Service, we understand the urgency and provide a furnace repair service that is both rapid and reliable. Our technicians are equipped with advanced diagnostic tools to accurately pinpoint the source of the failure. We do not just fix the symptom; we identify the root cause to ensure a lasting repair. Whether your furnace is not producing heat, making strange noises, or failing to turn on at all, our team has the expertise to solve the problem efficiently and restore your home’s comfort.

Our highly skilled technicians are prepared to handle the full spectrum of furnace issues, for both gas and electric models. Common problems we resolve include faulty ignitors or pilot lights, malfunctioning thermostats, broken blower motors, and failed limit switches. We are proficient in troubleshooting and repairing all brands of furnaces, so you can be confident that we have the knowledge to work on your specific unit. Our service vehicles are essentially mobile warehouses, stocked with a wide range of high-quality replacement parts, enabling us to complete most repairs in a single visit.

The repair process always starts with a comprehensive diagnostic inspection. Our technician will carefully examine your entire heating system. This includes checking the electrical components, testing safety controls, inspecting the burner assembly, and evaluating the blower and motor. This thorough evaluation allows us to provide you with a precise diagnosis of the problem. We will then explain the issue to you in plain, easy-to-understand terms and provide a clear, upfront price for the necessary repair. We believe in total transparency, ensuring you can make an informed decision with no hidden costs.

Once you give us the approval to proceed, our technician will begin the repair immediately. We use only top-quality, manufacturer-approved replacement parts to ensure the durability and safety of our work. Our technicians perform every repair with meticulous attention to detail and a commitment to the highest standards of craftsmanship. We respect your home and property, maintaining a clean work area and ensuring everything is tidy when the job is completed. The safety of your system is our utmost priority, and every repair is performed in strict compliance with all safety codes.

A critical area of furnace repair involves the heat exchanger. If we suspect a crack in your furnace’s heat exchanger, we will perform a thorough test to confirm it. A cracked heat exchanger is a severe safety hazard as it can leak carbon monoxide into your home. If a crack is confirmed, the furnace is unsafe to operate and must be shut down immediately. In this situation, repair is often not a viable option, and we will advise you on the safest path forward, which is typically a system replacement. Your family’s safety is non-negotiable.

Electrical problems are also a frequent source of furnace failures. Issues can range from a simple bad fuse or tripped breaker to more complex problems like a faulty control board or a failing transformer. Our technicians are experts at safely troubleshooting these intricate electrical systems. They can quickly identify the failed component and replace it, restoring proper function to your furnace. We treat all electrical work with extreme caution, ensuring every connection is secure and every repair is performed safely to protect your home from fire hazards.

Our relationship with you does not end once the heat is back on. We stand firmly behind our work with an industry-leading 5-year labor warranty on every repair we make. This is our promise to you that we have provided a high-quality, long-lasting solution. As a veteran-owned business that has been part of the Ten Mile community since 1989, our reputation is built on trust and reliability. When you need furnace repair, call the team that guarantees their work and is dedicated to your long-term satisfaction: Affordable AC & Service.

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Call (423) 800-2029

Energy Efficiency Focus

We help you lower energy bills with properly sized and installed systems.

Financing Available

Call us for financing options to make your HVAC repairs and installations more affordable.

Free Estimates

We offer free, no-obligation quotes so you can make informed decisions.

Need Emergency Furnace Repair? We’re Available 24/7!

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Protect Your HVAC System with an Affordable Maintenance Plan

The most effective way to prevent unexpected and costly furnace repairs is by investing in regular, professional maintenance. Our affordable maintenance plans are designed to keep your heating system in top condition, significantly reducing the likelihood of a breakdown. During an annual tune-up, our technicians can identify and fix minor issues before they escalate into major failures that leave you in the cold. This proactive care saves you money on repairs, improves energy efficiency, and extends the life of your furnace. Protect your comfort and your budget with our comprehensive maintenance service.

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Common Furnace Repair Questions

When your furnace stops working, it is natural to have many questions and concerns. To help homeowners in Ten Mile, we have answered some of the most frequent questions we receive about furnace repair. Having good information can help you navigate a stressful heating failure with more confidence.

There are several distinct signs that your furnace is in need of professional repair. The most obvious sign is a complete lack of heat. If your furnace is running but the air coming from the vents is cool or cold, or if the unit will not turn on at all, it clearly requires service. You should first check your thermostat settings and your circuit breaker, but if those are not the issue, it is time to call a professional. Insufficient heat or having to constantly turn up the thermostat are also indicators of a problem.

Unusual noises are another common red flag. Furnaces should operate relatively quietly. If you start to hear loud banging, popping, rattling, or squealing sounds, it is a sign that something is wrong mechanically. These noises can indicate a problem with the blower motor, a loose component, or an issue with your ductwork. Ignoring these sounds can lead to more severe damage, so it is best to have them checked out promptly. Similarly, a furnace that is cycling on and off too frequently (short cycling) is not operating correctly and needs to be inspected.

Pay close attention to the pilot light if you have an older gas furnace. A healthy pilot light should be a steady blue flame. If the flame is yellow, flickering, or appears weak, it could indicate a problem with the gas supply or, more seriously, that the furnace is not burning fuel completely. This can be a sign of carbon monoxide production. Any unusual smells, such as a strong smell of gas or a burning, metallic odor, are also serious warning signs that require you to shut down the system and call for emergency repair immediately.

The cost of a furnace repair can vary significantly based on the specific problem and the parts and labor required to fix it. Minor repairs are on the lower end of the cost scale. These can include issues like replacing a faulty flame sensor or ignitor, fixing a simple thermostat issue, or replacing a standard air filter. These repairs involve relatively inexpensive parts and can often be completed quickly by a skilled technician, resulting in a more modest final bill. We always provide free estimates and upfront pricing for any repair.

Mid-range repairs involve more complex components and more labor time. Examples include replacing the furnace’s blower motor, the draft inducer motor, or the gas valve. These parts are more expensive, and their replacement requires more technical expertise and time to ensure it is done safely and correctly. Replacing a furnace control board, which is the electronic brain of the system, also falls into this category. Our technicians will always explain the need for such a repair and provide a clear cost breakdown before starting work.

The most expensive furnace repairs are those that involve critical, high-cost components. The most significant of these is the heat exchanger. If the heat exchanger is cracked, it is a major safety hazard, and while replacement is sometimes possible, it is often so expensive that replacing the entire furnace is the more cost-effective and safer option. Our technicians will provide a detailed comparison of the repair versus replacement costs in such situations, empowering you to make the best financial decision for your home.

Deciding whether to repair or replace your old furnace is a major decision that hinges on three key factors: the age of the furnace, the cost of the repair, and the frequency of breakdowns. Most furnaces have a lifespan of about 15-20 years. If your furnace is approaching or has exceeded this age, investing in a major repair is often not a wise financial decision. An older unit is likely to experience more component failures in the near future, leading to a continuous cycle of repair bills. A new furnace offers reliability and a fresh start.

A good guideline to follow is the “50% rule.” If the cost of the needed repair is 50% or more of the cost of a new furnace installation, replacement is almost always the better choice. Pouring a large sum of money into an aging system that is inefficient and out of warranty rarely makes long-term financial sense. You should also consider how often your furnace has needed repairs. If you have had to call for service multiple times in the last couple of years, it is a clear sign that the system is becoming unreliable and replacement should be seriously considered.

Finally, do not overlook the energy efficiency factor. A new, high-efficiency furnace can be significantly cheaper to operate than your old unit. The money you save on your monthly heating bills can help to offset the cost of the new installation over time. An old, inefficient furnace will continue to waste energy and cost you money every month. Our technicians can provide you with a clear analysis of the costs and benefits of both options, helping you make a confident and informed decision for your Ten Mile home.

Smelling gas near your furnace is a serious emergency that requires immediate and specific action to ensure your safety. Natural gas itself is odorless, but utility companies add a chemical called mercaptan to it, which gives it a distinct smell of rotten eggs or sulfur. If you detect this odor anywhere in your home, you must act quickly. Your first and most important step is to not cause any sparks. Do not turn any lights on or off, do not use any electrical appliances, do not use your phone, and do not try to shut down the furnace yourself.

Immediately evacuate everyone from the house. Leave the door open as you exit to help ventilate the home. Once you are a safe distance away from the house, such as at a neighbor’s home or down the street, use your cell phone or a neighbor’s phone to call your natural gas utility’s 24/7 emergency number. Report the potential leak. They will dispatch a crew to your location to shut off the gas supply at the meter and ensure the area is safe. This is a critical first call.

After you have contacted the gas company, your next call should be to Affordable AC & Service for emergency furnace repair. Once the gas company has declared it safe to re-enter your home and has turned the gas off, our qualified technician can come to identify and repair the source of the leak within your furnace or its connecting pipes. Never attempt to find the leak or repair it yourself. Gas leaks are extremely dangerous and must only be handled by trained professionals.

A heat exchanger is a critical component inside your gas furnace. It is a set of metal tubes or chambers that gets very hot from the furnace’s burners. The air for your home is blown across the outside of these hot tubes, warming it up before it circulates through your ducts. The heat exchanger’s job is to keep the air you breathe completely separate from the combustion gases, including carbon monoxide, which are safely vented outside. A crack in the heat exchanger is a physical breach in this metal wall.

A cracked heat exchanger is extremely dangerous. When a crack develops, it can allow the toxic byproducts of combustion, most notably carbon monoxide (CO), to leak out of the heat exchanger and mix with the heated air that is being distributed throughout your home. Carbon monoxide is an odorless, colorless gas that is poisonous and can be lethal. Exposure to CO can cause flu-like symptoms, headaches, dizziness, and nausea at low levels, and unconsciousness or death at high levels. This is why it is considered a red-tag, mandatory shutdown situation.

The repeated heating and cooling of the furnace causes the metal of the heat exchanger to expand and contract. Over many years, this stress can cause the metal to fatigue and crack. Rust and corrosion can also weaken the metal and lead to cracks. During our repair and maintenance visits, our technicians are trained to perform a thorough inspection for any signs of a crack. If one is found, the furnace is immediately shut down and disabled for your safety. It is the most serious failure a furnace can have.

There are several potential reasons why your furnace might be blowing cold air instead of warm air. One of the simplest and most common causes is an incorrect thermostat setting. Someone may have accidentally switched the thermostat’s fan setting from “Auto” to “On.” When the fan is set to “On,” it will run continuously, even when the furnace is not in its heating cycle. This means it will circulate unheated, cool air through your vents between heating cycles. Before calling for repair, check to ensure your thermostat is set to “Heat” and the fan is set to “Auto.”

If the thermostat settings are correct, the problem could be related to the furnace’s combustion process. For a gas furnace, the pilot light may have gone out, or the electronic ignition system may have failed. Without a flame to heat the air, the furnace’s blower will simply circulate cold air. Another common issue is a dirty or faulty flame sensor. This safety device is designed to shut off the gas valve if it does not detect a flame. If the sensor is dirty, it cannot sense the flame and will shut the system down, resulting in cold air blowing.

Other potential causes include a clogged furnace filter restricting airflow and causing the furnace to overheat and shut down its burners as a safety precaution. A problem with the gas supply or a faulty gas valve could also be the culprit. In some cases, leaky ductwork can be the issue, pulling in cold air from an attic or crawlspace and mixing it with the heated air. Because there are so many possibilities, it is best to have a qualified technician from Affordable AC & Service accurately diagnose and resolve the issue.

A loud banging or booming noise coming from your furnace, especially when it first kicks on, is often a sign of a problem called delayed ignition. In a gas furnace, the gas valve opens and releases a small amount of gas into the combustion chamber, which is then supposed to be ignited immediately by the pilot light or electronic ignitor. If the ignition is delayed for any reason, gas can build up in the chamber. When it finally does ignite, it does so with a small explosion, creating the loud banging sound you hear. This is a potentially dangerous situation that needs immediate attention.

Delayed ignition is often caused by dirty or clogged burners. If soot and debris are blocking the burner ports, the gas cannot flow properly to the ignition source, causing the delay. A weak or faulty ignitor can also be the cause, as it may not be hot enough to ignite the gas instantly. Misaligned burners or low gas pressure can also contribute to the problem. This is not a noise you should ignore, as the repeated mini-explosions can put stress on your furnace’s components, particularly the heat exchanger, potentially leading to cracks over time.

While delayed ignition is the most common cause, a banging noise could also be related to your ductwork. Metal ducts can sometimes make a loud pop or bang as they expand and contract with temperature changes. This is usually caused by undersized or flimsy ductwork or a clogged air filter that is causing pressure changes. A technician can help determine if the noise is coming from the furnace itself or the ductwork. In either case, it is a problem that should be inspected by a professional to ensure the safety and proper function of your heating system.

Yes, we absolutely do. At Affordable AC & Service, we stand firmly behind the quality of our work, which is why we offer an industry-leading 5-year labor warranty on all furnace repairs we perform. This is a cornerstone of our commitment to our customers in Ten Mile and the surrounding areas. We are not interested in providing temporary fixes; our goal is to deliver durable, reliable solutions that solve your heating problems for the long term. This exceptional warranty is our promise to you.

This 5-year labor warranty means that if we perform a repair and replace a part, and that specific repair fails within five years due to an issue with our workmanship, we will come back and perform the labor to fix it again at no charge to you. The warranty on the part itself is covered by the manufacturer, but labor costs are often the most significant part of a repair bill. Our warranty protects your budget and gives you confidence that you are making a sound investment when you choose us for your furnace repair needs.

This warranty reflects the values of our veteran-owned and family-operated business. We believe in accountability, integrity, and superior craftsmanship. Offering such a strong guarantee holds us to the highest standards and provides our customers with unparalleled peace of mind. When your furnace fails, it is a stressful time. Knowing that the repair you are paying for is backed by a 5-year labor warranty can alleviate much of that stress and assure you that you have chosen a company that is truly dedicated to your satisfaction.

Get The Best Furnace Repair Near You

For fast, expert furnace repair in Ten Mile, TN, contact the reliable team at Affordable AC & Service. Call us today for your free estimate or for 24/7 emergency service to get your heat restored.

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Call (423) 800-2029