Chosen Solution
It would not turn ON but the Red LED light keeps on flashing. The manner of flashing is one slow long flashing that keeps on repeating and would not stop. I have checked the power supply unit board and I am only getting 3.5V DC on the 24V DC pin. Power supply part no is EAX 628645401/8.
@monesi1107 you are right of course. You went by the part number whereas I went by the PCB number . Those are the same boards. Sounds like you shorted out the power board which I believe was the issue from the beginning. I do not have a schematic for this power board so consider either replacing the complete board or get a repair kit for this board from places like this
The flashing is an error code, check the LG site for what. Power supply startup failures are “usually” capacitor failures in the switched mode power supply circuitry. You can see about a replacement or even fixing it. There’s at least 1 website that assembles kits of the recommended capacitors based on make & model.
