How to Replace Furnace Blower Motor Like a Pro!
How to Replace Furnace Blower Motor?
To replace a furnace blower motor, you will need to follow these steps:
1.
Turn off the power supply to the furnace and gas line.
2.
Remove the panels and locate the blower assembly.
3.
Disconnect the blower motor by removing screws or bolts securing it to the assembly.
4.
Disconnect the wiring to the blower motor.
5.
Remove the blower motor assembly by lifting and pushing it out of the furnace.
6.
Install the new blower motor assembly by inserting it into the furnace.
7.
Secure the assembly with screws at the top front.
8.
Replace the control panel by sliding it in and lining up the screw holes, ensuring to securely connect any cut wires with wire nuts and matching wire colors.
9.
Reassemble the furnace panels.
10.
Turn on the power supply to the furnace, open the gas line, and restart the furnace.
Make sure to refer to the provided video for a visual demonstration of the blower motor replacement process.
Key Points:
- Turn off power supply to furnace and gas line
- Remove panels and locate blower assembly
- Disconnect blower motor and wiring
- Remove blower motor assembly from furnace
- Install new blower motor assembly
- Secure assembly with screws and reassemble furnace panels
Did You Know?
1. In the early days of furnaces, before the invention of electric blowers, manual blowers were used consisting of giant bellows operated by hand.
2. The first successful electric furnace blower was invented in 1891 by Willis Carrier, who is often referred to as the “father of air conditioning.”
3. Did you know that furnace blowers are typically located in the basement, attic, or mechanical room of a building? This is because these locations help distribute the heated or cooled air more evenly throughout the space.
4. Furnace blowers operate using a simple yet ingenious mechanism known as a centrifugal fan. This design allows the blower to draw in air from the surrounding area, which is then propelled through the furnace system.
5. One important tip for maintaining a furnace blower motor is to regularly check and replace the air filter. A clogged or dirty air filter can restrict airflow, making the blower motor work harder and potentially leading to premature failure.
Introduction And Background
Replacing a furnace blower motor is a task that homeowners may encounter at some point. A blower motor plays a crucial role in moving air through the furnace system, ensuring efficient heating and cooling. Over time, these motors can wear out or become damaged, necessitating replacement.
The difficulty of replacing a furnace blower motor depends on the type of blower and furnace design. However, with the right tools and knowledge, both experienced DIY enthusiasts and HVAC professionals can accomplish this task.
Here are the steps involved in replacing a furnace blower motor:
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Turn off the power: Before starting any work, ensure that the power to the furnace is turned off. This step is crucial for safety reasons.
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Remove the access panel: Locate the access panel, usually near the blower motor, and remove it by unscrewing the fasteners. Set the panel aside in a safe place.
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Disconnect the wiring: Carefully disconnect the wiring connected to the blower motor. You may need to use a screwdriver or pliers for this step. Take note of the wire connections, as you will need to reconnect them later.
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Remove the blower motor: Unfasten the screws or bolts securing the blower motor to the furnace assembly. Gently pull the motor away from the assembly, being cautious not to damage any surrounding components.
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Install the new blower motor: Align the new blower motor with the mounting holes and secure it in place using the appropriate screws or bolts. Make sure it is firmly attached to the assembly.
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Reconnect the wiring: Referencing the notes you made during disconnection, reconnect the wiring to the new blower motor. Double-check that all connections are secure.
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Replace the access panel: Place the access panel back into position and fasten the screws or fasteners to secure it in place.
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Turn on the power: Finally, switch the power back on. Test the furnace blower to ensure it is running smoothly and producing the desired airflow.
Here are some tips and considerations for a successful furnace blower motor replacement:
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Safety first: Always turn off the power before working on any electrical components.
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Keep track of connections: Take pictures or label the wires during disconnection to ensure proper reconnection later.
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Choose the right replacement motor: Make sure to select a blower motor that matches the specifications of your furnace system.
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Follow manufacturer instructions: Consult the manufacturer’s manual or guidelines for specific instructions and troubleshooting tips.
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Consider professional assistance: If you are unsure or uncomfortable with the replacement process, it is advisable to seek help from a licensed HVAC professional.
Remember to proceed with caution and follow safety guidelines to avoid any mishaps during the replacement process.
Replacing The Blower Motor: DIY Vs Professional
When it comes to replacing a furnace blower motor, homeowners have the option of either tackling the job themselves or hiring a professional HVAC technician. The decision between DIY and professional replacement depends on the individual’s level of experience and comfort with HVAC systems.
For those with DIY experience or a willingness to learn, replacing a blower motor can be a cost-effective solution. The labor cost for professional replacement can range between $100 and $300, which may be a factor to consider. However, it is important to note that if the homeowner is not experienced with HVAC systems, it may be safer to hire a professional to avoid any potential risks or damage to the furnace.
Specifications To Consider When Purchasing A Blower Motor
When purchasing a new blower motor, it is crucial to ensure that it matches the specifications of the old motor. This includes factors such as:
- Motor diameter
- Horsepower
- Speed in RPMs
- Voltage
- Amps
- Fan speed
- Mounting method
- Shaft size
- Model number
- Serial number
These specifications can typically be found on the label of the old motor. It is important to note down these details and cross-reference them when purchasing a replacement motor. Third-party manufacturers provide quality replacement blower motors that match the OEM specifications, making it easier to find a suitable replacement.
Tips For Replacing The Blower Wheel And Capacitor
During the blower motor replacement process, it is often recommended to inspect and potentially replace the blower wheel and capacitor.
The blower wheel can become dirty or damaged over time, leading to reduced efficiency and airflow. Cleaning or replacing the blower wheel can help optimize the performance of the furnace system.
The capacitor is an important component that helps start and run the blower motor. It stores electrical energy and ensures a consistent flow of electricity to the motor.
When replacing the blower motor, it is crucial to also replace the capacitor to prevent any potential damage to the new motor. It is important to discharge the capacitor before removal and properly reconnect the wires from the motor to the capacitor.
- Inspect and potentially replace the blower wheel
- Clean or replace the blower wheel to optimize performance
- Replace the capacitor when replacing the blower motor
- Discharge the capacitor before removal
- Properly reconnect wires from the motor to the capacitor.
Note: The blower wheel and capacitor are important components that contribute to the efficiency and performance of the blower motor. Taking necessary steps to inspect, clean, and replace these parts when needed will help ensure a smooth functioning of the furnace system.
Step-By-Step Guide For Blower Motor Replacement
To replace a furnace blower motor, follow these step-by-step instructions:
- Step 1: Begin by turning off the power supply to the furnace for safety.
- Step 2: Remove the panels surrounding the furnace to access the blower assembly.
- Step 3: Locate the blower assembly and remove the bolts or screws that secure it.
- Step 4: Disconnect the wiring to the blower motor.
- Step 5: Lift and push the blower motor assembly out of the furnace.
- Step 6: Install the new blower motor assembly by carefully inserting it into the furnace.
- Step 7: Secure the motor assembly with screws at the top front.
- Step 8: Reconnect the wiring to the new blower motor, ensuring proper wire connections.
- Step 9: Clean or replace the blower fan if necessary.
- Step 10: Adjust the blower wheel to center it on the shaft and tighten the set screw to hold it in place.
- Step 11: Replace the capacitor along with the blower motor to prevent damage to the new motor.
- Step 12: Slide the blower assembly back into the furnace by aligning the upper edges with the tracks inside the furnace cabinet.
Final Steps: Reassembling And Testing The Furnace
After the blower motor replacement, it is important to complete the final steps to ensure the furnace is properly reassembled and functioning correctly.
- Replace the control panel by sliding it in and lining up the screw holes. If any wires were cut, they should be stripped and securely connected with wire nuts, matching wire colors.
- Reassemble the furnace panels by carefully securing them in place.
- Turn on the power supply to the furnace and open the gas line if necessary.
- Test the furnace by restarting it and observe its operation. Ensure that the blower motor is running smoothly and that there are no unusual noises or issues.
By following these steps and paying attention to the necessary details, homeowners can successfully replace their furnace blower motor and keep their HVAC system running efficiently.
Note: Whether opting for a DIY approach or hiring a professional, it is important to prioritize safety and accuracy throughout the replacement process.
Frequently Asked Questions
Can I replace my furnace blower motor?
Yes, replacing a furnace blower motor is definitely possible with the right tools and a basic understanding of HVAC systems. The difficulty level may vary depending on the specific type of blower and furnace design, but overall, the process is fairly straightforward. If you have prior experience with DIY projects or HVAC work, you should have no trouble completing this task successfully. It’s always a good idea, however, to consult the manufacturer’s instructions or seek advice from a professional if you’re unsure about any specific steps or safety precautions.
Is it worth it to replace a furnace blower motor?
Deciding whether to replace a furnace blower motor depends on the specific circumstances and the age of the unit. According to Goettl’s Guyton, replacing the blower motor with an ECM motor would only be beneficial if you have a new system. If your unit is already 20 years old, investing in a new ECM blower motor might not be the most effective solution. However, each situation varies when it comes to efficiency improvements, so it is essential to assess the specific needs and considerations of your system before making a decision.
Where is the furnace blower motor?
The furnace blower motor can be found in a specific location within your home’s gas forced air furnace. Situated in a box positioned at the base of the furnace, it is adjacent to the air filter. Its primary function is to draw return air through the filter, making it an integral component of the furnace system.
What type of motor is used for furnace blower?
The type of motor commonly used for furnace blowers is either the PSC (permanent split capacitor) or the ECM (electronically commutated motor). PSC motors were the traditional choice and are likely to be found in furnaces older than 5 years. However, newer furnaces often use the more advanced ECM motors, which offer greater energy efficiency and control.