If your blower runs but is noisy, buy just the motor/fan assembly. However, if the motor doesn't run at all, chances are it ...

Runs cooler and quieter than a blower, but it takes a whole lot ... It was in a Sliger SM550 with bottom mounted fans to move air through the case. The owner said it had been running fine.

It’s easier to assume the manufacturer set the blower correctly from the factory. Fortunately, there is a better way that involves using Fan Law Two. I forgot about this method until my friend Jason ...