Hot tub, new pump, but jets won't work
If the power at the pump is correct you may have a bad pump. To verify, check the following 3 things:


There are usually fuses to protect the wiring. Are they good?
Are the motor leads correct (low voltage, high voltage)? If not connected properly the stator windings wont spin the rotor. 
Is the startup capacitor good (where applicable)? 


Whatever you do don't dry spin the pump (power without water) or you will damage the shaft seal (pump to motor) and it will leak.