Motors are the parts that show you their age long before they quit. They get louder, they get hotter, they draw more current, they take longer to spin up. All of those are signs the bearings or brushes are on their way out — and none of them fix themselves.
This is the genuine Nilfisk Advance OEM MOTOR BLOWER 110-120V BACK VAC, part number 22240600, brand new in the box. Replace on schedule if you're running heavy hours; replace on symptoms if you're not. The one you don't want is replacing on failure, which usually happens at 2 PM on the busiest floor.
Genuine OEM motors are matched to the drive, the load, and the electrical spec of the rest of the machine. That's why they last, and that's why they don't burn up controllers.
Not sure this is the right motor for your machine? Send us the model and serial and we'll get you the right one.