Model Number: FGHD2465NF1A
Brand: Frigidaire
Age: 1-5 years
The display is blinking "Er" along with all other information, Drying, Washing, Clean, Dirty. The dishwasher drain pump runs sometimes when the door is closed. Random lights are flashing on the key pad and pushing keys does not change any function on the unit.
The power is cycled on the unit and "PF" is displayed but "Er" flashing returns in about a minute. There are no visible discrepancies with the control board or key pad during inspection and all connections were checked.
Is there a method to trouble shoot either control board or keypad to know which one to replace? I find it difficult to just swap parts and hope for the best, which is expensive and time consuming. I don't want to plug in a new key pad to a bad control board and damage the new key pad. Any suggestions?