Having the same problem right now with the exact same board. One of the GP47S60YERD (EYA36 marking on the PCB) is shorted on all three pins. Fuse was blown too. I can't find for the life of me a datasheet for GP47S60YERD on the internet, can you confirm IKW50N60DTPXKSA1 was a correct replacement? Some sources says the GP47S60 is a MOSFET , but if you replaced it with an IGBT I'll take your word for it....