Check the other appliances in your kitchen for power interruptions, as an indicator of what might have caused the "PF" error for the Frigidaire dishwasher. For example, many Frigidaire refrigerators, microwaves and ranges have LCD displays that show the current time. When there is a household power failure, usually all electrical appliances turn off. After power is restored, those clocks need to be reset, because the display will only blink and show the following: "00:00" or "12:00."
Find the "Start/Cancel" button on the dishwasher's control pad. This button is located on the far-right side of the pad on most Frigidaire Gallery dishwasher models.
Press the "Start/Cancel" button to clear the "PF" error code. Resume using the dishwasher as normal. You may have to reselect and start your cycle from the beginning.