The dryer keeps beeping and reads PF

Rubina, the very first thing you want to check are your fuses/breaker. Make sure that they are fully engaged. Then unplug your dryer for at least 15 minutes. Plug it back in and hit cancel and see if it works. You also want to clean all the lint ducts/screen. Hope this helps, good luck.

Just had the same problem! What happens is those white buttons on the right sight of the dashboard getting sticky inside, so when I pushed very right one it stick on, so I just got smth sharp and pull the button back out! Problem solved! With time buttons getting sticky underneath and when you push it on it sticks on and not coming back out