Scott for Model Number LDF5545BD/00 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.
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. Read More... Answered by AppliancePartsPros.com | Tuesday, September 14, 2021