Kerry A Cumming , GA March 11, 2017 Appliance: Samsung Microwave SMH2117S/XAA-0001 Samsung Microwave Smh2117s/Xaa-0001 / : Samsung microwave turns on when door closed. How to replace Microwave Door Latch And Switch Assembly. Replaced door assembly. Remove top grill. Remove cover over control panel. Unplug all wires from circuit board. Pull out door sssembly and replace. $15 part instead of new microwave. Very proud of myself! 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes