AO Smith Century Two-Speed Wiring Issue


New member
Jul 11, 2010
We are currently in the process of building a pond, and really don't want to hire someone to come out and wire this little motor for us. The motor's CAT number is B2981, and it has 3/4 HP. We've gotten the electrical box open, but AO Smith's wiring information is a little bit shotty. Once again, it is an AO Smith Century two-speed split capacitor motor/pump.

If someone is experienced in dealing with this motor's wiring, or can point me to some sort of diagram, I'd be thankful.

Bama Rambler

Mod Squad
TFP Expert
LifeTime Supporter
Jun 22, 2009
SouthWest Alabama
You should have three terminals in the pump, L1 L2 & A. Neutral shoud go to L2 (com) and hot should hook to A for low speed and L1 for high speed.
What are you trying to wire it to? A switch or a timer?

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