PF would be a power failure.. as in unit lost power to the control.. Check the power connection box at bottom left side and ensure wire nuts are good and tight..

What I found on my GE profile was that when I mpressede the LED display the washer would cut off. Step 1 remove power to prevent man electrical shock this is a must do !!! Second step remove the inside dishwasher panel held on by 7 screws and remove the locking knob to gain access to thee LED panel remove the outer conector first then use a flat tip common screwdriver to pry open the panel then you will see another srip that is connected to the panel. You have to pull the tabs back to remove the wire strip. Once removed remove the two screws that secure the LED circuit board once removed check the back of the display for corrossion I found that mine was where the first outer connector was on the circuit board. I used a small common straight tip screwdriver to remove the build up between the soildering once you can see between all the soildering reassembly the dishwasher and reconnect power and restart your dishwasher as you normally would. I am not an expert just an aviation avionics Technition with an extensive electrical background. I hope this helps you out it is cheaper to do it yourself and these steps are not that difficult once you get involved the task. It does have some basic mechanical and electrical talent to do this type of maintenance. I hope that tyhis helps you out Chuck Allen ccajr13@hotmail.com