I am getting an F01 code. All i hear is a click sound when i try to start the dryer. WED9400SW2

Unfortunately, that error is an internal failure code for the main electronic control board and it will need to be replaced to fix the dryer. You can order the board for that model from the link below:

https://prismparts.com/products/whirlpool-dryer-main-electronic-control-board-pp6826106