Customer Questions and Answers for Dishwasher Main Control Board by Frigidaire

Hello Robert, This is going to be caused by a bad door vent assembly 5304523304. As a matter of fact, many times if you disassemble the vent assembly you can clean off the soap deposits/mineral deposits and make sure the little spring is attached and it will clear the code for a while. Replacing the vent fan assembly will only clear the code as long as cleaning the old one, so if the spring isn't broken, I don't recommend replacing it.