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Oh, which of the gate resistors are fried? That's sometimes an indication of which mosfet failed shorted. Actually, from the picture it looks like all of the mosfets failed shorted. All the source legs are blown off, which is a tell-tale sign of that (leg #3 counting from left to right)
How do the diodes look? (the ones on the side opposite the picture)
How about the capacitors?
Can you take pictures of the gate resistors and control board top?
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