Scott for Model Number LDF5545BD/00 Measuring between pins 3 and 8 on the Main PCB CN1 connector to the front panel/display PCB gives 5 VDC as expected. So this means my Main PCB is good and I should focus downstream, yes? Is the most likely suspect the front control panel/display PCB now? Is there another diagnostic test to confirm that? I don’t want to think about it being a short/open in a harness, but I’ll cross that bridge when I come to it… Thanks. —————— LG dishwasher LDF5545BD will not power up. Good power at breaker, junction box, and noise filter. The red LED on the PCB will light upon application of power. A voltage detector will indicate power on the right/back-of-unit side of the board about to the position of the LED, but then reads nothing on the left/front-of-unit side. Unsure as to what to go after next, whether it could be a partly bad PCB, maybe a bad harness somewhere, or the front control panel. Any advice as to what to troubleshoot next would be appreciated. Thanks. Scott for Model Number LDF5545BD/00 ANSWER Scott, if a 5vdc signal voltage will not leave the main control AGM76429503 to the user interface, then it has failed and would need to be replaced. The voltage can be tested using the main control connection CN1 from pin 8 to pin 3. Answered by AppliancePartsPros.com | Tuesday, September 14, 2021
Answer Scott, If you have power coming from the control board to the User interface but the interface is not coming on then it would be a faulty User interface. Read More... Answered by AppliancePartsPros.com | Wednesday, September 15, 2021