Furnace Blower Motor Replacement Cost Calculator
Three kinds of motor, three price points. The average blower motor replacement cost is about $550 to $580, and most jobs run $300 to $900. Which end you land on depends mainly on the type of motor your furnace already has.
Blower motor replacement cost by motor type
| Motor | Installed cost | Typical |
|---|---|---|
| Single-speed (PSC) | $300 to $900 | about $575 |
| Multi-speed | $320 to $1,100 | about $710 |
| ECM or variable-speed | $600 to $1,500 | about $875 to $1,050 |
ECM motors cost roughly $300 to $600 more to replace than PSC motors in these figures.
The part alone runs from about $325 for a quarter-horsepower motor to $1,125 for one horsepower, and labor costs $150 to $400 for one to three hours.
Furnace or AC: the same fan does both
In a central system the furnace fan pushes both warm and cool air, so the cost to replace a furnace blower motor and an AC blower motor is usually one and the same job: a single blower serves heating and cooling. AC repair price lists quote a wider $300 to $2,000 for an AC blower motor, depending on tonnage and home size, which sets the upper bound for the HVAC blower motor replacement cost on a large system.
Parts that fail along with it
A single-speed motor depends on a run capacitor. A new one costs about $100 to $250 installed, and it is worth checking first when the motor hums but will not start.
A new blower wheel costs $125 to $800 installed. For ECM motors, a new control module runs $250 to $900, with $520 a common price.
An evening or weekend call adds $100 to $200.
Sounds and smells that point to the motor
The usual signs are weak or no airflow from the vents, grinding, squealing or rattling, a burning smell or overheating, rising energy bills and repeated circuit breaker trips.
Fix the motor or replace the furnace?
Blower motors last 10 to 20 years, and a furnace 15 to 20. Replacing the motor makes sense if the rest of the furnace is in good condition; once the furnace is past 15 years old, weigh a new system instead.
Check the warranty before paying for parts. Most warranties cover the blower motor itself but not the installation, so homeowners often still pay for the labor.