Jason for Model Number GDT695SGJ2BB Dishwasher is completely unresponsive, and will not go into any diagnostics. I have proper voltage, I already had a new door switch, so I tried it, and to no surprise it did not fix the issue. The LED on the main board was flashing rapidly (4x per second) and according to the service manual it says software error replace MC. So I ordered a new main control and installed it, and now the LED is a solid green light, which again according to the service manual means UI personality not set communication error UI and MC. One thing I noticed different between the new and old board is that the old has six removable jumper pins at J231 and the new one does not, and the holes are closed, so I can't transfer the pins from the old to the new? Not sure if that is the problem or if it just also needs a new UI as well?
Answer Jason, This will be an issue with the User Interface or wiring to the interface would cause this issue. Read More... Answered by AppliancePartsPros.com | Friday, July 7, 2023