Alternating currents?

[Samw]

Originally Posted by Son Of Skyline

but they need a good smack on the sides to get them to start up after I plug them in.

Hi Mason. You know its just the gunk that has accumulated around the impeller right? You just need to pull out the impeller, give it a good cleaning and also use a Q-Tip or small brush or something to clean out the impeller's chamber. I had a lot of gunk in there.