FO1 code after the start button is pushed. Dryer wont run.

The F01 error code is an internal failure code for the main control board. The board will need to be replaced. The board you need for the model you listed is linked below:

https://prismparts.com/products/whirlpool-dryer-main-electronic-control-board-pp2605106?_pos=1&_sid=a727e11ba&_ss=r