How long should a pump motor last?

[CarlD]

I need to replace my pump motor for the 3rd time. The pump is a Sta-Rite Dura Glass 1 hp. How long should the motor last? Is there a pump and motor with a 5 or 10 guarantee available? The motors are running around 100-125.00 each.

Thanks for your responses.

While Al is usually more knowledgable about pumps than I am, I have some questions:
1) Are you replacing just the motor? How do you know the pump isn't making the motor work too hard?
2) How's the pressure on the system? If it's too low the motor may spin to fast, too high it will lug and burn out the motor.
3) How's your current? If the voltage at the pump is dropping too low, or spiking too high, you'll burn out motors. And that would probably indicate a wiring problem.

These are just starter questions.....