Ok, so my pump just hums and wont start. The pump has been running fine all summer and went out last week. So I replaced the capacitor and everything was running fine until today. I stopped it so I could start up the hot tub and it wouldn't start again. I am back to the humming. I have tested the capacitor and it is good. I also put a meter on my pump and I am getting voltages ranging from 225 to 26 when I am trying to start it. I am at a loss here and hoping someone can help. A little background on the pump itself. It is a 2.5 HP Pentair Challenger. I believe it is the original pump and motor to the pool built in 2004, it has at least been here since I bought the house in 2010. I have absolutely no problem buying a new motor, I just want to make sure it isn't just a $20 part that is broken instead of a $300 motor.
Thanks In Advance,