A blower motor replacement typically incurs at least one to two hours of labor, with labor generally costing at least $60 per hour, so performing the task yourself can save $60 to $120 or more. Mistakes made when performing the repair, however, can cost more.
Replacing a blower motor requires dealing with electrical parts; motors, for example, are almost always attached to capacitors. A capacitor that is not properly discharged poses a shock risk and can damage parts of the system, which can be more expensive to replace. Blower motors sometimes go bad because of other problems with the system, and experts may be able to find these problems while performing repairs, which saves homeowners money in the long term.