Jonah P Somerville , MA June 12, 2015 Appliance: Samsung Microwave SMH9187ST/XAA Samsung Microwave Smh9187st/Xaa / : Se error code. How to replace Microwave Touch Control Membrane Switch. Followed this youtube video for the fix: https://www.youtube.com/watch?v=Mw3SBx9Zuyw Pretty easily done. The only thing which took any time at all was getting the old adhesive off. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes