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Unscrew the defective IGBT
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Now the defective IGBT had to be removed, but the transformer on the PCB blocked handling a screwdriver. The transformer was soldered at several points, it seemed rather laborious to disassemble it.
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So I went for the more convenient solution: I nibbled off some of the plastic of the transformer with pliers, after which I could just reach the screw of the IGBT with a small flathead screwdriver.
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In the green circle the defective component, and the partially nibbled away plastic.
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In the blue "circle" the microcontroller board, which controls the other electronics on the board.
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The second picture shows a close-up of the result of this questionable practice.
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