Question about Smith 2hp Pool Pump Motor A O Electric Pool Motor Replacement for 48y Square Flange Usq1202

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Wiring of 2hp motor

The reconditioned spa pump motor is a 230 volt single phase motor & has 3 wires 1- yellow 1-white 1-black wire haging out of the motor enclosure & when connecting the yellow & black to 1- hot conductor & 1- hot conductor to the white wire the motor will not start it will just hum until the thermal overload kicks the motor circuit off.Is it possible the capacitor is bad or could it be miswired when it was reconditioned?

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You need to take advice from the motor manufacturer or reconditioner to ensure you are wiring it correctly.

Typically a basic single phase motor will have a start winding and a run winding. That usually makes four wires for a reversible motor but that can be cut to three if the motor must run in one direction only so the three wires would be start, run and common.

The run is connected to the hot side of the supply and the start similarly connected to the hot side except the start capacitor will be in series. The common wire will require connecting to a neutral and of course the motor body will need a ground unless it is double insulated.

It should be possible to sort which is which using a sensitive ohmmeter.

Posted on Jul 03, 2017


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Posted on Jan 02, 2017

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SOURCE: Hi I am replacing pool pump motor (O A Smith

In this case you are going to be better off consulting a electrician to help you with this issue. There are to many risk involved in getting someone to assist you over the internet with this. If someone tells you the wrong wire placement and you get hurt or pop the fuse in your house you are now looking at that much more work,

Posted on May 05, 2010

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SOURCE: Pool pump 3/4 hp wiring

I think the lug with no screw is for 110 volt? Don't know, but your 2 wires in, black and red are both hot, each one to the lugs,line 1 and 2, the bare wire gets bolted on outside of the motor and jumped to another ground somewhere, and the white wire, goes to a lug marked B?,,, check that one. I went to the web site and they want you to know if you do it wrong, no guarantee, so check out the frame number, then look up your motor and go by the label. Hope this helps.

Posted on May 06, 2010

Testimonial: "Thank you this was all I needed was the link that you give me. It showed the wireing digramof the motor. Thanks Max B"

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