What is the make and model number of your unit please?
Ok this sounds like the control card took a hit when the power went out. The control card is what runs everything on the washer. All the solinoids. motor controlls etc. The motor is probably what is causing the whine as there is no water being admitted into the unit and it is pumping nothing but air.
You might want to consider having a tech come look at it. He will be able to tell you whether it is saveable or if you would be better off purchasing a new one. Most of the control boards for the GE line are expensive.
I am sure that this is not what you wanted to hear, but it is the only honest answer there is. I would appreciate it if you would honor the time I have put into researching, and answering your question by clicking on the accept button.
Best regards; The Home Smithy