David G El Paso , TX September 05, 2016 Appliance: Samsung Microwave SMH9187W/XAA Samsung Microwave Smh9187w/Xaa: Kept getting an se error. How to replace Microwave Touch Pad Membrane Switch. After searching the internet ran into the AppliancePartsPROS.com website, Found that the problem was the "switch mambrane". I ordered it and received it withing two days as expected. The part was easy to replace and seems to have slolved the problem, microwave is working fine. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes