I had a capacitor fry in my 12v power supply I bought from the parts store, it was recommended in the instructions of a 3D printer I bought. The printer worked for a few days and I got a handful of prints done before it died. The power supply never got hot to the touch during any of the prints, is their anyway to tell if I wired something wrong or it was just a bad power supply? Im not sure if this helps but its labelled rt1 and is located above the AC inputs. Any help would be great!