Our A O Smith pump/motor gets airbound everyday

if you are not a motor service person do not try this your self get the right help be safe

115v motors are wired with Black (hot) White (neutral) and Green (ground)

Rod
www.uspartscenter.com

double the amps, 230 runs cooler (my fav) . 1.5 is 9.6 amps at 230 volt. you will need to set the motor to run on on the lower voltage this is why you are having problems.. also the motor is thermally protected . this why it will run for awhile and shot off .. remember to prime the pump after any pump repair !!!! . jay the pool pump repair guy in longwood florida

Your black and white wires go on L1 and L2. It will not matter which wire goes on with line terminal as long as you just put one cord wire on L1 and one on L2. Be sure you properly switch the motor to run on 115V since it will facotry prepped for 230.<br /> <br /> John

Download the AO Smith Motor Troubleshooting Guide below (a.k.a #3400 from aosmithmotors.com) below:

http://www.aosmithmotors.com/WorkArea/DownloadAsset.aspx?id=588

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

Check the line voltage under load first to be sure it is not dropping to low and if it checks out, yes, get a warranty replacement.

The motor-start capacitor is bad. This is a very common problem. It can be easily and cheaply fixed by replacing the capacitor. Replacements are usually less than $10.

See http://www.youtube.com/watch?v=ZEIv5ClLqXg for a step=by=step guide.

When you have the capacitor in hand, check the model# which is printed on it. Alternatively, you can Google the motor brand & model to find the parts list which will identify the right one. Then Google the part number, to find a seller.

Diagram for aosmith motor b381 is here: http://www.electricmotorwarehouse.com/IMAGES/B381_connection.htm

However, I believe that this motor will be more efficient at 230v depending on load conditions. At 115v this motor will draw more amps and tend to run hot, but situation rules. Enjoy