skip to Main Content

Comfort, Efficiency, Innovation, Insight

An image labeled properly to illustrate Carrier Furnace Parts

The Complete Guide to Carrier Furnace Parts: Everything You Need to Know

Carrier is one of the most trusted brands in the heating and cooling industry, with a history of innovation and quality that spans over a century. Carrier furnaces are designed…

This post may contain affiliate links. Please read my disclosure policy.

Carrier is one of the most trusted brands in the heating and cooling industry, with a history of innovation and quality that spans over a century. Carrier furnaces are designed to provide reliable and efficient performance for your home, but like any appliance, they may need some maintenance or repair from time to time.

That’s why it’s important to know about the different parts of your Carrier furnace and how to find the right replacement parts when you need them.

In this guide, we will cover everything you need to know about Carrier furnace parts, including:

  • The main components of a Carrier furnace and their functions
  • The common problems that may affect your Carrier furnace and how to troubleshoot them
  • The best sources for finding genuine Carrier furnace parts and how to install them
  • The benefits of using OEM Carrier parts and how to maintain your Carrier furnace for optimal performance

The Main Components of a Carrier Furnace and Their Functions

A Carrier furnace is composed of several parts that work together to heat your home. Below are some of the main Carrier furnace parts:

  • Blower motor: This is the part that circulates the air through the furnace and distributes it to the ducts. It can be either single-speed or variable-speed, depending on the model of your furnace.
  • Blower wheel: This is the part that spins the air inside the blower housing. It can be either direct-drive or belt-drive, depending on the model of your furnace.
  • Burner: This is the part that ignites the fuel (gas or oil) and creates the heat for your home. It can be either single-stage or two-stage, depending on the model of your furnace.
  • Circuit board: This is the part that controls the operation of your furnace and communicates with the thermostat. It can be either standard or advanced, depending on the model of your furnace.
  • Capacitor: This is the part that stores electrical energy and helps start and run the blower motor and other components.
  • Compressor: This is the part that compresses the refrigerant in your heat pump system (if you have one) and transfers heat between the indoor and outdoor units.
  • Contactor: This is the part that connects and disconnects the power supply to your heat pump system (if you have one) and controls when it operates.
  • Fan blade: This is the part that moves the air through the outdoor unit of your heat pump system (if you have one).
  • Fan motor: This is the part that drives the fan blade in your outdoor unit of your heat pump system (if you have one).
  • Filter: This is the part that traps dust, dirt, pollen, and other contaminants from the air before it enters your furnace. It can be either disposable or reusable, depending on the model of your furnace.
  • Flame sensor: This is the part that detects if there is a flame in your burner and shuts off the gas valve if there is none.
  • Gas conversion kit: This is the part that allows you to convert your furnace from natural gas to propane or vice versa, depending on your fuel source.
  • Heat exchanger: This is the part that transfers heat from the burner to the air that flows through your furnace. It can be either aluminized steel or stainless steel, depending on the model of your furnace.
  • Humidifier parts: These are the Carrier furnace parts that add moisture to the air that flows through your furnace, such as water panels, solenoid valves, humidistats, etc.
  • Igniter: This is the part that sparks or glows to ignite the fuel in your burner. It can be either hot surface or intermittent pilot, depending on the model of your furnace.
  • Inducer: This is the part that draws out the exhaust gases from your furnace and vents them outside. It can be either draft or pressure, depending on the model of your furnace.
  • Pressure switch: This is the part that monitors the pressure in your inducer and ensures that there is enough airflow for combustion.
  • Switches: These are the parts that control various functions of your furnace, such as limit switches, rollout switches, door switches, etc.
  • Transformer: This is the part that converts high-voltage power to low-voltage power for your furnace components.
  • Valves: These are the Carrier furnace parts that regulate the flow of gas or refrigerant in your furnace or heat pump system (if you have one), such as gas valves, expansion valves, service valves, etc.
  • Wiring harness: This is the part that connects all the electrical components of your furnace with wires and connectors.
  • Miscellaneous parts: These are other parts that may be needed for your furnace, such as gaskets, seals, screws, brackets, etc.

The Common Problems That May Affect Your Carrier Furnace and How to Troubleshoot Them

Like any appliance, your Carrier furnace may experience some issues over time that may affect its performance or safety. Some of the common problems that could be caused by some of the mentioned Carrier furnace parts are:

  • No heat or insufficient heat: This could be caused by a faulty thermostat, a tripped circuit breaker, a blown fuse, a dirty filter, a clogged burner, a bad igniter, a faulty gas valve, a cracked heat exchanger, etc. To troubleshoot this problem, you should check the thermostat settings, the power supply, the filter condition, the burner condition, the igniter condition, the gas valve operation, and the heat exchanger integrity.
  • Noisy operation: This could be caused by a loose or worn blower belt, a dirty or unbalanced blower wheel, a bad blower motor, a faulty inducer, a blocked vent pipe, etc. To troubleshoot this problem, you should inspect and tighten or replace the blower belt, clean and balance the blower wheel, lubricate and replace the blower motor, check and replace the inducer, and clear the vent pipe.
  • Frequent cycling: This could be caused by a dirty filter, a faulty thermostat, a bad flame sensor, a dirty or misaligned burner, etc. To troubleshoot this problem, you should replace the filter, adjust or replace the thermostat, clean or replace the flame sensor, and clean or adjust the burner.
  • Blower runs continuously: This could be caused by a faulty thermostat, a bad limit switch, a shorted circuit board, etc. To troubleshoot this problem, you should check and reset or replace the thermostat, test and replace the limit switch, and inspect and repair or replace the circuit board.
  • Pilot light goes out: This could be caused by a drafty location, a dirty orifice, a bad thermocouple, a faulty gas valve, etc. To troubleshoot this problem, you should relocate or shield the furnace from drafts, clean the orifice with a needle or wire brush, replace the thermocouple, and check and replace the gas valve.

The Best Sources for Finding Genuine Carrier Furnace Parts and How to Install Them

When you need to replace any of your Carrier furnace parts, you should always use genuine Carrier parts that are designed and tested for your specific model. Using generic or aftermarket parts may compromise the performance or safety of your furnace and void your warranty.

There are several sources for finding genuine Carrier furnace parts online or offline. Some of them are:

  • Sears PartsDirect: This is an official Carrier furnace parts distributor that offers a wide range of Carrier furnace parts for various models. You can search by model number or part number on their website and order online or by phone. They also provide installation guides, diagrams and manuals to help you with your repair.
  • Carrier Parts: This is another official Carrier furnace parts distributor that specializes in Carrier chiller parts. You can search by model number or part number on their website and order online or by phone. They also have expert staff that can help you with your technical questions.
  • Parts Town: This is an authorized Carrier parts dealer that offers fast shipping and genuine OEM parts for your Carrier furnace. You can search by model number or part number on their website and order online or by phone. They also have helpful videos and articles to guide you through your repair.

To install your new Carrier furnace parts correctly and safely, you should always follow the instructions provided by the manufacturer or the parts supplier. You should also turn off the power supply and gas supply to your furnace before starting any repair work.

If you are not confident or experienced in doing it yourself, you should hire a professional technician to do it for you.

The Benefits of Using OEM Carrier Parts and How to Maintain Your Carrier Furnace for Optimal Performance

Using OEM (original equipment manufacturer) Carrier furnace parts has many benefits over using generic or aftermarket parts. Some of them are:

  • Quality: OEM Carrier parts are made with high-quality materials and specifications that match your furnace model exactly. They are also tested and certified by Carrier to ensure their reliability and durability.
  • Performance: OEM Carrier parts are designed to work seamlessly with your furnace system and deliver optimal performance and efficiency. They also help prevent potential problems that may arise from using incompatible or inferior parts.
  • Safety: OEM Carrier parts are engineered to meet strict safety standards and regulations that protect you and your home from fire hazards and carbon monoxide poisoning. They also help prevent damage to your furnace components that may result from using faulty or improper parts.
  • Warranty: OEM Carrier parts are covered by Carrier’s warranty which guarantees their quality and performance for a certain period of time. Using generic or aftermarket parts may void your warranty and leave you without any recourse if something goes wrong.

To maintain your Carrier furnace for optimal performance and longevity, you should follow some basic maintenance tips such as:

Change the filter regularly: The filter is one of the most important parts of your furnace, as it affects the air quality and efficiency of your system.

You should change the filter at least once every three months, or more often if you have pets, allergies, or dusty conditions. A dirty filter can reduce the airflow, increase the energy consumption, and cause overheating or damage to your furnace components.

Clean the burner and the flame sensor periodically: The burner and the flame sensor are responsible for creating and detecting the flame in your furnace. You should clean them at least once a year, or more often if you notice any signs of soot, corrosion, or dirt buildup. A dirty burner or flame sensor can cause poor combustion, incomplete burning, or flame failure.

  • Inspect the heat exchanger annually: The heat exchanger is the part that transfers heat from the burner to the air that flows through your furnace. You should inspect it at least once a year for any cracks, holes, or leaks that may allow carbon monoxide to escape into your home. A cracked heat exchanger can pose a serious health and safety risk and should be replaced immediately.
  • Lubricate the blower motor and other moving parts as needed: The blower motor and other moving parts of your furnace need lubrication to run smoothly and quietly. You should lubricate them as needed, or according to the manufacturer’s instructions. Some newer models have sealed bearings that do not require lubrication. A poorly lubricated blower motor or other moving part can cause noise, friction, or wear and tear.
  • Check the vent pipe and the chimney regularly: The vent pipe and the chimney are the Carrier furnace parts that carry the exhaust gases from your furnace to the outside. You should check them regularly for any blockages, leaks, or damage that may prevent proper venting. A blocked or damaged vent pipe or chimney can cause backdrafting, carbon monoxide poisoning, or fire hazards.
  • Schedule a professional tune-up every year: The best way to maintain any of your Carrier furnace parts for optimal performance and longevity is to schedule a professional tune-up every year before the heating season begins. A professional technician can inspect, clean, adjust, and repair your furnace components and ensure that they are working safely and efficiently. A regular tune-up can also help you save money on energy bills and avoid costly repairs in the future.

Conclusion

Carrier furnaces are among the best in the market, but they still need proper care and maintenance to keep them running smoothly and safely. By knowing about the different parts of your Carrier furnace and how to find and replace them when needed, you can extend the life of your furnace and enjoy its benefits for years to come.

We hope this guide has helped you learn everything you need to know about Carrier furnace parts. If you have any questions or need any assistance with your Carrier furnace repair or replacement, please feel free to contact us at any time. We are always happy to help you with your heating and cooling needs.

Read more posts here.

I'm an HVAC enthusiast and a passionate writer dedicated to sharing valuable insights and practical tips about heating, cooling, ventilation, and air conditioning systems.

Latest Posts

Hi there, I'm Robert Brooks

Hi there, I'm Robert Brooks

I’m so glad you are here! Welcome to my website, where I’ll share easiest HVAC troubleshooting tips, buyers guides, and everything about HVAC cooling and heating system. Learn more about me.

Back To Top