Purchased all the micros for the door safety system and a new fuse. Removed both access panels on the left side, changed fuse behind the top panel. R & R the three micro switches and checked the fuse on the bottom. Reassembled and powered up all good. PART NUMBERS ON THE NEW SWITCHES DON'T MATCH OLD SO PAY ATTENTION. ALSO SUPER EASY TO BREAK THE SWITCH HOLDERS, MIGHT WANT SOME HELP WITH THIS PART OF REPAIR. I BROKE ONE SIDE OF EACH SWITCH HOLDER BUT THEY STILL WORKED. If you don't already own one of these microwaves, don't buy one this is a major flaw.