Ordered new control board, replaced and still no display on read out. Checked the 120 volts to board with door closed. Any other failures possible?
Here are your parts
Parts for Frigidaire FGHD2433KF1 Dishwasher - AppliancePartsPros.com
Here is the wiring diagram
http://manuals.frigidaire.com/prodinfo_pdf/Kinston/154768201b.pdf
I am assuming tat you checked for 120 volts at the control board (P3-5 to P3-6).
Is there any signs of life on the unit?
You said “still no display on read out” do you also mean no LEDs light up on the control panel?
If it is just no digital display the it could be just a bad display.