Hello all. In my final stages of putting this machine back together and I have noticed that the LED (RED) board that sits on the apron is not working. I have had two different people have a look at the board itself and they both can't find any faults with it. Apart from the wiring, what should I be looking for/at or where should I be looking? Still a novice to all of this, especially wiring, electronics, etc... Please help!!!! Thanks.