Thanks for the post!

I'm sorry to hear this, you could be looking at a couple of different reasons for this:

1. New Pressure Switch is defective (it happens every now and again).
2. You have a motor defect or Capacitor defect.

Most likely the motor is fine, but there is a starter switch inside the motor, on the inside of the end cover opposite the pulley. A lot of times the contacts on this spring loaded starter get corroded and need to be cleaned.
You can see a technical how-to document on how to do just that on our website by clicking on the below link:

www.mastertoolrepair.com/images/How_To_C...r_Starter_Switch.pdf

Here is another helpful doc on trouble-shooting motor problems:

www.mastertoolrepair.com/images/Motor_Problems.pdf

Do you hear a hum or any kind of noise at all when you attempt to start it, or is there no sound at all? If there is a hum then you may have a faulty motor Start Capacitor.

Let me know what you find and we can go from there.

- MTR