Sounds like the windings are burning up. It could be due to the bearings or just short but you will probably need a new motor or pump.

If you replace the motor, I would go with another A.O.Smith motor and preferably a two speed.


As for a new pump, I would need a little bit more information.

Form the picture it looks like you might have a spa? If so, I would go with the same size pump you have now to maintain jet strength. So the WFDS-6 or 28 would be a good choice.

Also, what is the size of your filter?