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So the pressure switch could cause some of these issues, but usually the pressure switch isn't the problem. The only thing that can cause the F01 is the main control board also known as the CCU. The main control board is part number W10525351 and below is a link to the part.
CLICK HERE for control board
This is the only part that would cause all of your errors so unless you have 2 issues, the board is going to be your faulty part you'd want to order and replace. It's mounted to the right side panel above the tub and can be seen if you remove the top panel of the washer.
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