I was having issues getting the heated bed to power. Manually or even after i'd run a job Repetier would say "heating bed", and it obviously wasnt heating...no LED light near mosfet, but the extruder and fan works great. My RAMPS setup isnt particularly easy to get to, so after unplugging everything and looking at the board for further inspection i've noticed the main positive power input directly beside D8 has turned black and bubbled up. Dead give away that is the issue, especially after i did a continuity test from where the wire goes in and to the 'brown-halfway-burnt' pin soldered to the backside of the board. No connectivity. I have no issues resoldering a replacement connector on to it. My main question is "Why did this happen in the first place??" Surely it couldnt be my power supply. I'm using a 550 Watt PSU capable of 32A on the 12V rail so it should have been getting enough power...any ideas whatsoever? I'm itching to get back to printing...but the last thing i want to do is wake up on fire. Thanks ahead of time :)
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