Just sent you a private message then seen your pictures.
the blown item is turquoise in colour as with many.
look at bottom of board.
2 vertical black heat sinks, to the left of left heat sink 'R247' Value 100 micro Joules 3.
yours is physically this size with the 3 on the end but resistance is- 200 micro Joules.
hope this helps.
my machine was functioning well all weekend until reverse alarm repeated on skim cut and now EDM power button on front panel wont light or hold in?
chasing around for over loads and fuses but not sure which area to look as no schematics either!!!