Melvin V Wesley Chapel , FL July 06, 2015 Appliance: Model SAMSUNG SMH 2117S Key d was broken found the right part at appliancepartspros com Took strip from around microwave door. Took out the broken key D and spring. Reinstall new key D and walla the microwave is working again Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes