Fishman and Bluejumper, your symptoms point to the start capacitor. It gives the pump a kick start when first energizied on, otherwise you will only hear it humm without rotation.
IF you were to take a flexible wire, or cord and lace it through, and then back around the impeller/motor shaft, when you activate the pump on, pull on the cord to rotate the impellar/shaft. This will begin the rotation and the electrical field will begin to operate the motor. If this is successful, and considering the freezing temps, program your spa for continious 24 hr operation until the capacitor is replaced.
The icon tells you you are sending electric to the motor, so don't mess with changing the connections to other applications.
Your problem is the start capacitor which is the smaller of the 2 humps on the motor, or it is enclosed in the tail end of the motor. A tech should have a capacitor tester that would confirm the diagnosis, but your symptoms are confirmed by the humm which is a common failure.
You have 2 options, change the start capacitor, or change the motor (which is still good).