My front loader will not start. the door is shut, has new hinge, locks, has water and power but after I choose the cycle and push start it does nothing.
Take a look at the tech sheet that is either under the top cover or inside the lower service panel. See if you can put the machine in test mode.
Given what you have said I would also check the wiring in the door lock mechanism. It is possible that in replacing the door lock assembly the wiring is loose or not making full connection to the CCU and this is your problem.