Happy new year!

My Colchester Tornado 210 lathe tripped the main workshop breaker just before Christmas and afterward the Fanuc power supply module A06B 6087 H126 (D) has no power to it. I took the front off check the fuses, on the secondary board inside the F2 fuse has blown and a surface mount transistor has popped. Has anyone have any idea what might have caused this?

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