When a furnace blower motor needs to be replaced ... Replacing a furnace's control or circuit board ranges from a low of $275 to a high of around $770, for an average cost of $520.
Next, try spinning the blower wheel (HVAC pros call this the birdcage) to see if it spins freely. If it doesn’t, that’s another sign of a faulty inducer motor. The furnace control board is ...