What is the most common problem with furnaces?
- By TriadSheetMetalEditor
- •
- 23 Oct, 2023
- •
Common Home Furnace Issues

With cold weather on the way, you'll soon be running your furnace non-stop to keep your home warm. This constant use will increase your chances of a potential heating system issue. These are a few of the common residential furnace problems and their usual symptoms.
Clogged Air Filters
Your furnace's filter pulls contaminants and allergens out of the air before they can enter your ductwork. These filters need to be changed every couple of months on average to prevent them from getting clogged. When they're full, they impede airflow into the system, leading to internal overheating and short cycling. Remember to switch out your filter the first time you use your furnace this fall.
Faulty Ignition
Every furnace needs a starting mechanism to begin a cycle. Older gas furnaces typically have a pilot light while newer models utilize electrical ignitions. When this part fails, it can prevent your furnace from turning on and heating your home. This may be because of an electrical failure or a problem with your gas supply line or flame sensor.
Broken Blower Components
Your heating system's blower is responsible for pushing heated air through the ductwork. Unfortunately, the blower has several components like its ball bearings and capacitor that are liable to fail. When the blower bearings become faulty due to wear and tear or improper installation, they can create a loud whining or grinding sound. This noise will worsen the more you run your furnace. The capacitor, which stores power like a battery, can fail and trip your circuit breaker. A common sign of this problem is your furnace stopping in the middle of its cycle.
Customer-Oriented Heating and Roofing
Triad Sheet Metal Heating & Cooling has delivered excellent heating, cooling and roofing services to Greensboro, NC for nearly 30 years. We offer 24/7 emergency repair service, preventative maintenance and full replacements. Our specialists can install your ventilation system or improve your air quality with purifiers and dehumidifiers. Schedule your heating system appointment with Triad Sheet Metal Heating & Cooling in Greensboro today.

All furnaces should be serviced and maintained regularly to make sure that they continue heating effectively and efficiently. If you want to lessen the chances of your furnace breaking down over the winter, you should always have your furnace professionally serviced every year. In this post, we're going to discuss why furnace maintenance is important and what it involves.
The Importance of Yearly Furnace Maintenance
Furnace maintenance is essential for your safety. It helps to prevent possible fire hazards and carbon monoxide leaks. The technician servicing your equipment will always check that everything is functioning properly to ensure the furnace will automatically shut down if it overheats or experiences a safety issue. Maintenance is also important for the life of your furnace, ensuring it lasts anywhere from 15 to 30 years. It can also save you money by lowering your heating costs and helping to avoid costly repairs later on.
What Does Furnace Maintenance Entail?
Maintaining a furnace involves inspecting, cleaning and testing all of your heating system's components on an annual basis. This includes the various components inside the furnace, as well as the blower and thermostat.
A technician will inspect your ductwork to ensure it isn't damaged or leaking air. Damaged ductwork will greatly increase your energy costs and make your heating system far less effective.
Cleaning the blower assembly, furnace burners and flame sensor are especially important for keeping the furnace heating effectively. This also provides reliability. Inspecting the heat exchanger and exhaust flue is also essential for ensuring the furnace is properly vented and preventing carbon monoxide leaks.
As one of Greensboro's most trusted HVAC companies, Triad Sheet Metal is your best choice for furnace maintenance and repairs. Our technicians have experience servicing all makes and models of furnaces as well as central air conditioners and heat pumps. We also offer professional HVAC replacement and installation as well as a full range of indoor air quality services. Give us a call today to schedule your annual furnace maintenance service.