PF FLASHING WILL NOT START UNPUNGED IT STILL FLASHING PF

PF stands for power failure. The only thing you can do is try and reset the electronics by killing power to it at the breaker/fuse panel on your home for one full minute then restore power. If after that the problem persists the main control board is bad and will need to be replaced. The board you need for the model you gave is linked below.

https://prismparts.com/products/whirlpool-dryer-main-electronic-control-board-pp3413106?_pos=3&_sid=08ab1225b&_ss=r