I have just come across a free pool pump and hope I will be able to get it up and running. So far I have had absolutely no luck with it. The run switch seems to work and so I don't think it is the culprit. I have even tried two newish capacitors which I know work. When I plug it in it just hums. It doesn't throw the breaker so I don't think a short is the problem and it isn't bound up as I can turn it easily by hand. There is also no sign of twitching as the motor attempts to start. The overpower protection switch seems to be good and shows continuity across all polls. The motor itself has continuity where I believe it is necessary so I am at a loss for what could be wrong. The motor says it is good for 115 volts as well as higher but I would prefer not to shove higher voltages through it if not necessary. Do any of you have ideas on how I could get this up and running as the pump is in excellent condition and will be useful as a runoff booster pump.