Don't Get Left in the Cold: How to Replace Your Furnace Motor for Winter

Winter brings chilly temperatures, shorter daylight hours, and a renewed appreciation for a warm home! Your furnace is the key to keeping your family toasty and comfortable – and a quality furnace motor is the backbone of that all-important appliance. 

Also known as a blower motor, a furnace motor circulates air by blowing heated air through the ducts and into your home. It turns the blower fan, which pushes the warm air created by the furnace into each room. And by controlling airflow, the furnace motor contributes to the overall efficiency of your heating system. 

If your furnace isn’t running as efficiently as it should — or worse, has stopped working altogether — it may be time for a furnace motor replacement. SquarePeg has you covered with high-quality replacement motors and this step-by-step guide to swapping out your old one.

Signs Your Furnace Motor Needs Replacing

If you are thinking about home heating repair, it’s important to recognize the warning signs that you need a furnace motor replacement:

Weak or No Airflow – If your furnace is running but no air is coming through the vents, the motor may be struggling or completely burned out.

Strange Noises – Grinding, screeching, or humming sounds could indicate worn bearings or other issues.

Overheating and Frequent Shutdowns – If your system turns off unexpectedly, it could be due to the motor overheating.

Increased Energy Bills – A failing motor may require more energy to operate, leading to higher heating costs.

How to Replace Your Furnace Motor

If you need a furnace motor replacement, follow these steps to install a new one safely and effectively. Before you begin, always consult your furnace’s manual and take safety precautions!

Step 1: Gather Your Tools and Replacement Motor

You’ll need these tools: a screwdriver, wrench set, multimeter, safety gloves, safety glasses, and a camera or notepad to record wiring connections. Most importantly, you will need a compatible furnace replacement motor.

Step 2: Turn Off the Power

Locate the furnace’s power switch and turn it off. For extra safety, shut off the power at the circuit breaker to avoid any risk of electrical shock.

Step 3: Access the Blower Assembly

Remove the furnace access panel to locate the blower motor. Unscrew the panel securing the blower assembly and carefully slide it out.

Step 4: Disconnect Wiring and Remove the Old Motor

Take a picture or make a note of how the wires are connected to the motor. Use your multimeter to ensure there is no lingering electrical charge. Disconnect the wires and remove the mounting screws holding the motor in place. Detach the fan blade or wheel from the motor shaft.

Step 5: Install the New Furnace Motor

Attach the fan blade or wheel to the new motor’s shaft. Secure the motor to the blower assembly with the mounting screws. Reconnect the wiring according to your reference notes or picture.

Step 6: Reinstall the Blower Assembly

Carefully slide the blower assembly back into the furnace and secure it in place. Replace the furnace access panel and tighten any screws.

Step 7: Restore Power and Test the Furnace

Turn the power back on at the circuit breaker and furnace switch. Run the furnace to ensure the motor is operating correctly, listening for any unusual noises and verifying airflow.

For another guide to winter furnace maintenance, we recommend this blog: How to Replace a Furnace Blower Motor. 

Why Choose SquarePeg for Your Replacement Motor?

When it comes to home heating repair, a successful furnace motor replacement starts with a reliable, high-quality motor. SquarePeg offers a wide range of durable and energy-efficient furnace motors designed to fit various heating systems. With competitive pricing, easy online ordering, and expert support, SquarePeg ensures you have everything you need to keep your home warm all winter long.

Browse SquarePeg’s selection of furnace motors today and stay ahead of the winter chill!