Question about Smith AO Pool Pump Motor

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Installing a replacement pool pump and motor

I have a new A O Smith Century LASAR 115 volt Motor and need guidance on which connectors to wire to.

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There is a green screw and two other screws. green is ground and the others two are universal, it's not like a DC motor.

Posted on Feb 25, 2014


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Posted on Jan 02, 2017



Faulty centrifugal switch, internal, faulty, temp sensor, internal, faulty start run capacitor (If used). bad brushes, (If any) Faulty Winding.

Posted on Feb 03, 2010

  • 1902 Answers

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

  • 2100 Answers

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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SOURCE: S48A84A04 - AO Smith motor diagram - I am looking

Here is a great pdf file for AO Smith motors. This covers other types of motors too but does give a few views of the starting switch mechanism.

Posted on Oct 01, 2010

  • 372 Answers

SOURCE: Help! Just opened my pool and the pump/motor (which is only 2 years old) is very noisy. Sounds like it could be the bearings. Do call someone to the house, disconnect and take to a repair shop, ord

Disassemble the pump to the point where you can see the whole impeller. Then turn the power back on to verify that it is the bearings, and not trapped debris causing the noise. If it is the bearings the short answer is to replace the motor.

Bearing failure is usually related to a leak at the pump seal. This results from either a faulty seal installation, or the pump running excessively hot (from running w/o water).

When replacing the motor carefully examine the seal plate (where the seal is set) front and back for any cracks or deformity. If the new seal doesn't set exactly, it will leak.

Posted on Apr 04, 2013

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please verify the name plate to be 115 230 volt motor.there will be a schematic that shows you exactly how to hook up this motor depending on the voltage being supplied to it. The main thing is switching between 115 and 230 volts this is a selector switch this very easily forgotten about. Please make sure to check that and double check that to make sure its on the proper selected switch. Good luck

A thumbs up would be greatly appreciated if this answer is helpful to your free Fixya question

Jun 30, 2012 | AO Smith 1 hp 3450rpm 56Y Frame 115230...

1 Answer

My new AO Smith motor does not have an L1 IT has L2, L3, and L4 so how do I hook the wires?

There is a schematic on the motor itself to show you exactly how to hook it up. The main thing is knowing whether it's 115 volt or 230 volt connection. Good luck any questions hit me back up.

A thumbs up would be greatly appreciated if answer is helpful for your question. THANK you and GOD BLESS

Apr 26, 2012 | AO Smith 1 hp 3450rpm 56Y Frame 115230...

1 Answer

A.O smith pool pump tripping breaker

It you either have an impeller problem or capacitor problem on the motor. I would take the capacitor off and take it to a electronic or lexical shop to have them check it. It's only about 15 to 20 dollar pics if it's just your capacitor.

A thumbs up would be greatly appreciated if answer is helpful for your question. THANK you and GOD BLESS YOU.

Apr 08, 2012 | AO Smith 1 hp 3450rpm 56Y Frame 115230...

1 Answer

High Ringing Noise

Sounds like it just needs lubricating. It's probably dry seals rubbing against the stainless shaft.

Bad bearings usually make grinding noises. Replacing bearings can be a DIY job, but not a teriffically simple one.

Apr 21, 2009 | AO Smith A O Smith Motors Century 1hp 115v...

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