Joe for Model Number LGHC2342LF0 My user interface was showing the temp on the fridge side to be 58*, but the temp inside the fridge unit was 34* and freezing food. The freezer side worked fine. I took the top hinge cover off to inspect wiring, and the user interface went dead and the fridge light went dark, and the fridge stopped working. The freezer light remained on, but it failed to keep cool as well. What steps do I need to take to determine if it's a main board or user interface that's bad?
Answer Joe, based on the information provided, it sounds like there is a shorted wire (a shorted wire can cause multiple components to potentially fail). The wiring at the hinge will need to be inspected for any bare spots that may have grounded out. The main control 5304499075 can be tested for voltage to identify if it is sending 12VDC to the user interface 241973711. At the main control connection J9A, the red probe of a meter would be placed at pin 1 while the black probe is placed at pin 3. If there is not 12VDC, the main control has failed. If there is proper voltage, and there was not a shorted wire at the hinge section, the next step would be to test the user interface for incoming 12VDC. At connection J2 of the user interface, there should be 12VDC with the red probe at pin 1 and the black probe at pin 3. If there is, the user interface has failed and may be causing the main control to be shut down. Read More... Answered by AppliancePartsPros.com | Thursday, June 4, 2020