Can You Replace a Furnace Blower Motor Yourself?

Can You Replace a Furnace Blower Motor Yourself?

Every handy person has their limits. Whether it’s the required equipment or just the knowledge, you want to ensure you have what it takes before starting a job. Working on heating products and replacing furnace parts isn’t any different! That’s why it pays to do some research before diving in.

Can You Replace a Furnace Blower Motor Yourself? Understanding If It's Easy

The furnace blower motor is a critical component of your furnace. It’s what’s responsible for pushing heated air through the ductwork to warm your home. While replacing a blower motor may sound straightforward, the difficulty level depends on your furnace model and mechanical expertise.

Replacing a blower motor involves disconnecting electrical components, removing the old motor, and securely installing the new one. This includes disconnecting wires and unbolting the blower assembly as part of the process. All of this requires a solid understanding of HVAC systems. For those experienced in DIY furnace repair, it might be manageable, but for others, the blower motor difficulty and the risk of mistakes often make professional help the better option. Ensuring a correct installation helps maintain system efficiency and avoids additional repairs. If the job needs to get done, you want to ensure it’s done right!

Understanding the Blower Motor

The blower motor is a crucial component of your furnace, responsible for circulating warm air throughout your home. Typically located inside the furnace, it connects to the fan wheel, which blows air through the ducts. There are two main types of blower motors: direct drive and belt drive, with direct drive being the most common in modern furnaces. Understanding how the blower motor works and its importance in the heating system can help you diagnose and repair issues more effectively. Knowing the type of blower motor in your furnace can also guide you in selecting the right replacement motor, ensuring compatibility and optimal performance. In many systems, the blower motor is enclosed in a protective motor housing that keeps dust and debris out while helping to reduce noise.

How Long Does It Take to Replace a Furnace Blower Motor?

The time required to replace a blower motor for a furnace depends on whether a professional handles the job or it’s a DIY project. For professionals, the replacement time typically ranges from 2 to 4 hours, depending on the furnace model and the motor’s removal and installation complexity. The steps involved in motor replacement include disconnecting the power, removing the old motor, and installing the new one, with potential benefits such as improved efficiency and reduced noise.

DIY projects can take longer, especially for those unfamiliar with HVAC systems. Gathering the right tools, troubleshooting issues, and carefully following safety protocols can add several hours to the furnace repair time. Factors like accessibility, motor type, and unforeseen complications, like rusted components or electrical issues, can also influence the overall DIY time estimate. Whether DIY or hiring a pro, planning the time accordingly helps ensure a successful and stress-free replacement.

Can You Replace Just the Blower Motor on a Furnace?

It is definitely possible to replace just the blower motor without replacing the entire furnace. This approach is often recommended when the blower motor is the sole issue and the rest of the system is in good condition. However, ensuring compatibility between the new motor and your furnace model is critical. (That’s part of why it’s nice to have a one-stop shop where you can compare many parts simultaneously. For that, Surplus City can help!)

Consulting your furnace’s specifications or working with an HVAC technician can help identify the correct part for a successful furnace repair. From there, the steps involved include turning off the blower to the unit, disconnecting electrical wires, removing the old motor, and installing the new one securely. It is important to remove the mounting bracket alongside other bolts to ensure the motor can be pulled out carefully. In many units, loosening the motor set screw is a necessary step to detach the motor shaft from the fan blade during removal. While replacing the motor can restore your furnace's efficiency, complex models or improper handling can lead to issues, so professional help is a good option if you're unsure.

Signs of a Failing Furnace Blower Motor

A failing furnace blower motor can exhibit several signs, including:

  • Increased noise: A failing blower motor can become noisy, producing rattling, grinding, or screeching sounds.

  • Reduced airflow: If the blower motor is not working efficiently, it can reduce the airflow, leading to inadequate heating.

  • Increased energy bills: A failing blower motor can cause the furnace to work harder, leading to increased energy consumption and higher bills.

  • Overheating: A failing blower motor can cause the furnace to overheat, leading to reduced performance and potentially causing damage to other components.

  • Failure to start: If the blower motor fails to start, it can prevent the furnace from functioning altogether.

Recognizing these symptoms as when the furnace blower wheel is bad an help you address issues before they lead to more significant problems, ensuring your furnace continues to operate efficiently.

How Much Does it Cost to Replace a Furnace Blower Motor?

The cost of a furnace blower motor varies depending on the type, brand, and model. On average, replacing a furnace blower motor costs between $300 and $900. A new blower motor can significantly improve furnace efficiency and reduce noise. This price includes the motor, which typically ranges from $100 to $500, and the labor costs, which add another $200 to $400 for professional services. That being said, when you shop for a reliable supplier with high-quality parts like Surplus City, you should be able to collect some tremendous upfront savings!

Opting for a DIY furnace repair can save on labor expenses, but you’ll still need to invest in the motor and potentially specialized tools. Additional furnace repair expenses include diagnostics fees, upgrades for compatible parts, and any repairs needed to address underlying issues. Ensuring a proper replacement can help you avoid further costs and keep your heating system running smoothly. Let our inventory help!

Safety Precautions and Testing

Before attempting to diagnose or replace a furnace blower motor, it is essential to take safety precautions to avoid injury or damage. Here are some steps to follow:

  • Turn off the power supply: Switch off the power to the furnace at the circuit breaker or fuse box before attempting any repairs.

  • Verify the power supply: Ensure that the power supply is working correctly before buying a new motor.

  • Check the capacitors: Capacitors store energy and can cause electrical shock if not handled properly. Check the capacitors for signs of damage, such as bulging or leaking.

  • Test the motor wiring: Check the motor wiring for any signs of damage or wear. Ensure that the wiring is securely connected to the motor and the control board.

  • Use a multimeter: Use a multimeter to test the voltage and resistance of the motor to determine if it is functioning correctly.

  • Consult a professional: If you are unsure about any aspect of the repair or replacement process, consult a professional HVAC technician to ensure your safety and the safety of your furnace.

By following these safety precautions and testing procedures, you can ensure a safe and successful replacement of your furnace blower motor. Taking the time to perform these checks can prevent further damage and ensure your heating system operates efficiently.

Got a Guy or DIY? Check with Us for Furnace Blower Motor Parts!

Whether you’re handling the project on your own or you know a handyman who can help you out, check with Surplus City for your blower motors and other repair parts before you go anywhere else. We have a vast inventory at unbeatable prices to help you save!