How Much Will An HVAC Repair Or AC Fan Motor Replacement Cost? Even the highest quality fan motors from reputable brands like Lennox, Trane, and Goodman wear out over time., The cost of replacing an AC blower motor or a condenser fan motor in a residential HVAC system may vary widely. The average cost of a typical blower motor replacement job (parts and labor) in the United States is approximately 300 to 900 dollars with an average cost of 580 dollars., The blower motor is the heart of your furnace, circulating warm air throughout your home. If it stops working, your home stays cold, and your furnace might overheat, causing even more damage. The cost of a new furnace blower motor typically ranges from $70–$2,400 before installation—much cheaper than installing a new furnace. In this guide, we’ll break down what a blower motor does and , Explore blower motor replacement costs for AC and furnace units. Get details on types, maintenance tips, and how to save on your HVAC system., The blower motor is an electric component that powers your furnace’s blower fan and moves indoor air throughout the HVAC system. Its functions are directly connected to your thermostat, and the blower motor can be single-speed, multispeed, or variable-speed., Blower motor size is the most impactful cost factor, with every 1/4 horsepower adding an average of $500 to your total. Multiple-speed blower motors are 40% more expensive than single-speed ones, but last longer. Blower motor repairs cost around $300, so consider a fix over replacement if it’s not old. Check your HVAC system warranty before replacing the blower motor to see if it’s covered..