Key Points

• Start with the simple stuff. Many furnace problems trace back to a dirty filter, incorrect thermostat settings, dead thermostat batteries, or a tripped breaker.
• Dirt and neglect are major culprits. ENERGY STAR lists dirt and neglect as the top causes of heating and cooling system failure and inefficiency.
• Gas smells are an emergency. If you smell gas, leave your home right away and call your gas company or 911 from a safe location.
• Age matters. ENERGY STAR suggests considering replacement once a furnace is more than 15 years old.
• Most repairs cost a few hundred dollars. Angi’s 2026 data puts the average furnace repair around $318, though major part failures can cost much more.

A furnace that won’t turn on, blows cold air, or keeps shutting off is usually caused by a dirty filter, a thermostat problem, a tripped breaker, or an ignition issue. If your furnace isn’t working, it can be quite frustrating, especially during the colder months. You may also hear unusual noises or notice that the pilot light has gone out. These problems often require prompt attention to prevent more serious damage and higher costs. Before you panic, it’s essential to understand the troubleshooting steps you can take to diagnose the issue effectively.

So, what should you check first? Start with the air filter; a clogged filter can restrict airflow and cause your furnace to work inefficiently. Next, make sure your thermostat is set correctly and functioning; sometimes, a simple adjustment is all it takes. If you hear strange noises, it could indicate a mechanical issue that needs professional assessment. Additionally, if you have an older furnace with a standing pilot light, check whether it’s lit; if it’s out, you may need to relight it following the manufacturer’s instructions or call for assistance.

If you find yourself unable to resolve the issue, don’t hesitate to reach out to the experts at Chisholm Plumbing, AC & Furnace Repair. With over 50 years of combined experience, our team is dedicated to providing quality service to Greer, SC, and the surrounding areas. For more information about our heating services or to schedule a service, please visit our contact page. We’re here to help you get your furnace back up and running!

Common Furnace Problems and What Causes Them

When dealing with a malfunctioning furnace, you might encounter several common problems that can leave you in the cold.

1. No Heat or Weak Heat

One frequent issue is a lack of heat production. This could stem from a dirty air filter, which restricts airflow and reduces efficiency. If you haven’t changed your filter in a while, that’s a good place to start.

For expert assistance, consider reaching out to Chisholm Plumbing, AC & Furnace Repair for professional furnace services.

2. Strange Noises

Another problem you might face is strange noises, such as banging or squeaking. These sounds often indicate loose parts or a malfunctioning blower motor. Ignoring these noises can lead to bigger issues down the line, so it’s best to address them early.

If you’re in need of a thorough inspection, our team at Chisholm can help.

3. Thermostat Problems

Your thermostat may also be the culprit. If it’s malfunctioning, it might not signal the furnace to turn on at all. Make sure it’s set to the desired temperature and that the batteries are fresh.

If adjustments don’t resolve the issue, consider contacting Chisholm Plumbing, AC & Furnace Repair for a professional evaluation.

4. Frequent Cycling

Lastly, you could experience frequent cycling, where the furnace turns on and off repeatedly. This could indicate an oversized furnace, a dirty filter causing the furnace to overheat, or issues with the thermostat. Understanding these common problems can help you narrow down the cause of your heating woes.

If troubleshooting becomes overwhelming, don’t hesitate to call Chisholm Plumbing, AC & Furnace Repair for reliable support and solutions.

For more information about our services, including plumbing and air conditioning, visit Chisholm Plumbing, AC & Furnace Repair. Our experienced team is here to ensure your home remains comfortable throughout the year.

Furnace Troubleshooting Steps to Try First

If your furnace isn’t heating properly, troubleshooting can help pinpoint the issue before you call for professional assistance.

1. Check your thermostat. Make sure it’s set to “heat” and the temperature is higher than the current room temperature. If it’s battery-operated, try replacing the batteries to rule out power issues.
2. Inspect your air filters. Clogged filters can restrict airflow, causing your furnace to overheat and shut down. If they’re dirty, replace them with clean filters, or let us handle AC and furnace air filter replacement for you.
3. Check your circuit breaker. A tripped breaker can cut power to your furnace, so reset it if necessary. Also check that the furnace’s power switch (often a light-switch-style toggle near the unit) is turned on. If the breaker trips again, stop and call a professional.
4. Examine the gas supply. If you have a gas furnace, make sure the gas valve is open and there’s no gas odor. If you smell gas, leave the area immediately, avoid flipping switches or using anything that could create a spark, and contact your gas company or 911 from outside. Our team also provides gas leak repair once it’s safe.
5. Listen for unusual noises. Strange sounds when the furnace operates might indicate mechanical issues. By following these troubleshooting steps, you can often identify the problem and determine whether it’s something you can fix or if you need further assistance.

If you find that troubleshooting doesn’t resolve the issue, consider reaching out to Chisholm Plumbing, AC & Furnace Repair for expert help.

Our team is ready to assist with heating system repair and maintenance. For more information about our services, including heating and air conditioning, visit our website.

If you need to schedule a service, feel free to contact us. We’re here to ensure your home stays comfortable all year round!

When to Call a Professional for Furnace Repair

Knowing when to call a professional can save you time and prevent further damage to your furnace. If you’ve followed the troubleshooting steps but your furnace still isn’t working, it’s time to seek help from Chisholm Plumbing, AC & Furnace Repair. Call a pro if you notice any of the following:

• Unusual Sounds: Banging or grinding often indicates a mechanical issue that requires expert attention.
• Gas Smell or Frequent Pilot Light Outages: Don’t hesitate. Turn off your furnace and call a technician immediately. If you smell gas, leave your home first and call from outside. Safety should always come first.
• Short Cycling: If your furnace is turning on and off frequently, that’s a sign of a bigger problem, possibly with the thermostat or the ignition system.
• Sudden Spike in Heating Bills: Bills that jump without an obvious reason could indicate inefficiency due to a malfunctioning part.
• An Older Furnace With Multiple Issues: If your furnace is older and you’re facing repeated problems, it might be more cost-effective to consider replacement rather than repair. ENERGY STAR recommends considering replacement once a furnace is more than 15 years old.

If your furnace quits on a cold night, our emergency HVAC repair team can help. And because a malfunctioning gas furnace can create carbon monoxide risks, make sure your home has working CO alarms. By knowing these signs, you can keep your home warm and safe and avoid causing further damage or higher repair costs down the line.

For expert heating services, including furnace repair and maintenance, visit our heating services page. If you need immediate assistance, don’t hesitate to contact us. At Chisholm Plumbing, AC & Furnace Repair, we’re dedicated to providing quality service you can trust.

Preventative Furnace Maintenance Tips

Regular preventative maintenance can help you avoid many of the issues that lead to calling a professional. According to ENERGY STAR, dirt and neglect are the top causes of heating and cooling system failure and inefficiency, so a little upkeep goes a long way.

1. Change your furnace filter regularly. Check your filter every month and change it as recommended by the manufacturer. A clean filter improves airflow and efficiency, reducing strain on your system.
2. Keep vents and registers clear. Make sure furniture or curtains aren’t obstructing airflow.
3. Keep the furnace area clean. Keep the area around your furnace clear of debris and stored items to ensure proper ventilation.
4. Check your thermostat settings. If your thermostat isn’t functioning correctly, it can lead to heating issues. Consider upgrading to a programmable thermostat for better efficiency. For assistance with your heating system, you can explore our heating services.
5. Schedule an annual inspection. Book yearly furnace maintenance with a qualified technician from Chisholm Plumbing, AC & Furnace Repair. Our experienced team can identify potential problems before they escalate, ensuring your furnace runs smoothly through the colder months.
6. Watch your furnace’s performance. If you notice unusual noises or inconsistent heating, address them promptly. Our team is here to help with any heating concerns you may have.

By following these preventative maintenance tips, you’ll not only extend your furnace’s lifespan but also enjoy a warmer, more comfortable home.

For more information or to schedule a service, don’t hesitate to contact us. Remember, regular maintenance can save you from the hassle of unexpected repairs and keep your home comfortable year-round.

Understanding Furnace Repair Costs

Understanding the costs associated with furnace repairs can help you budget effectively and avoid surprises when issues arise. Repairs can range significantly based on the problem, the furnace’s age, and the type of system you have. According to Angi’s 2026 cost data, furnace repairs range from about $64 to $1,475, with the average repair costing around $318.

Simpler fixes, like replacing a filter or a faulty sensor, tend to fall at the lower end of that range. More complex issues, such as a failed blower motor or heat exchanger, can push costs much higher. Additionally, the age of your furnace plays a crucial role; older units might require specialized parts that can be pricier.

Don’t forget about labor costs, which can make up a significant share of the total. Emergency and after-hours calls also typically cost more. It’s wise to ask for clear, upfront pricing before any work begins, which is exactly what you’ll get from the team at Chisholm Plumbing, AC & Furnace Repair.

With over 50 years of combined experience, our team provides top-notch HVAC services, including furnace repairs, to Greenville, Greer, and the surrounding areas.

By understanding these potential costs, you can avoid unexpected financial strain when your furnace needs repairs. Always consider setting aside a budget for emergency repairs to keep your home warm and comfortable during the colder months.

If you find yourself in need of assistance, you can explore our heating services or contact us for more information.

In addition, if you’re looking to improve your home’s comfort year-round, don’t forget to check out our air conditioning services and plumbing services.

We emphasize fairness, honesty, and quality service, making us a reliable choice for all your HVAC and plumbing needs.

Frequently Asked Questions

How Can I Improve My Furnace’s Energy Efficiency?

To improve your furnace’s energy efficiency, regularly change the filters, schedule annual maintenance with Chisholm Plumbing, Heating & Air Conditioning, seal air leaks, and consider installing a programmable thermostat. These steps can help reduce energy consumption while keeping your home comfortable. For professional assistance, don’t hesitate to contact us today! Our team, with over 50 years of combined experience, is dedicated to providing quality service in Greer, SC, and the surrounding areas. Additionally, if you’re looking to enhance your home’s overall energy efficiency, explore our home energy solutions or consider our expert HVAC services.

What Is the Average Lifespan of a Furnace?

The average lifespan of a furnace typically ranges from 15 to 30 years. To ensure your furnace reaches the upper end of that range, regular maintenance is essential. At Chisholm Plumbing, Heating & Air Conditioning, we emphasize the importance of scheduling those check-ups to keep your system running efficiently for as long as possible. Our team, with over 50 years of combined experience, is dedicated to providing top-notch furnace services in Greer, SC, and the surrounding areas. If you need assistance, feel free to visit our heating services page or contact us to schedule your maintenance today. Remember, a well-maintained furnace not only lasts longer but also operates more efficiently, saving you money on energy bills. For any plumbing needs, check out our plumbing services as well. Let Chisholm Plumbing, Heating & Air Conditioning help you keep your home comfortable year-round!

Can a Dirty Filter Cause My Furnace to Stop Working?

Yes, a dirty filter can definitely cause your furnace to stop working. When the filter becomes clogged, it restricts airflow, leading to overheating and potential shutdown of your heating system. Regularly changing your filter is essential to maintain efficiency and prolong your furnace’s lifespan.

If you need assistance with your furnace or any other HVAC services, Chisholm Plumbing, Heating & Air Conditioning is here to help. With over 50 years of combined experience serving Greer, SC, and the surrounding areas, our team emphasizes fairness, honesty, and quality service. Whether you require heating system repair, maintenance, or installation, you can trust our expertise.

Don’t forget to regularly check your filter and reach out to us for any heating needs at Chisholm Heating Services. For more information or to schedule a service, visit Chisholm Contact.

Are There Specific Noises Indicating a Furnace Issue?

Yes, specific noises can indicate furnace issues. If you hear banging, rattling, or squealing, it’s likely a sign of a problem that shouldn’t be ignored. These sounds usually signal that it’s time to inspect or repair your furnace. At Chisholm Plumbing, Heating & Air Conditioning, we offer expert heating services to address any furnace concerns you may have. With over 50 years of combined experience, our locally owned and operated team in Greer, SC, emphasizes fairness, honesty, and quality service. If you’re experiencing unusual noises, don’t hesitate to contact us for a thorough inspection and reliable repair.

How Can I Tell if My Thermostat Is Malfunctioning?

To determine if your thermostat is malfunctioning, start by checking if it is unresponsive or displaying incorrect temperatures. You may also hear unusual clicking sounds or notice that your heating system runs continuously without cycling off. If you encounter these issues, it’s important to act quickly to avoid further complications. For professional assistance, consider reaching out to Chisholm Plumbing, Heating & Air Conditioning, where our experienced team can help diagnose and resolve your HVAC concerns. We offer a range of services, including heating system repairs and air conditioning services. If you need plumbing services as well, we have you covered with reliable solutions available here. Don’t hesitate to contact us for more information or to schedule an appointment.

Get Your Furnace Working Again With Chisholm in Greer, SC

If your furnace isn’t working, don’t panic. Common issues are often easy to fix. Start by checking the air filter, thermostat, and pilot light (if your furnace has one). If these troubleshooting steps don’t resolve the problem, it might be time to call a professional from Chisholm Plumbing, AC & Furnace Repair. Our experienced team specializes in heating services and can quickly identify the issue to get your furnace back up and running.

Remember, regular maintenance can save you from future headaches and keep your system running efficiently. By staying proactive, you can ensure your home stays warm and cozy when you need it most. If you need assistance, reach out through our contact page or call 864-302-6438.

For any plumbing needs as well, we offer comprehensive services, including drain cleaning and water leak detection. Visit our plumbing services page for more information.

Trust Chisholm Plumbing, AC & Furnace Repair to provide quality service you can count on.