Martin K Lansing , KS May 12, 2017 Appliance: Samsung Microwave SMH9187ST/XAA Samsung Microwave Smh9187st/Xaa / : 5E error code. How to replace Microwave Switch Membrane. Ordered membrane switch and switched out for the new one. Hardest part of the job was cleaning the old glue off before installing new switch. Recommend liberal soaking with Goo-B-Gone, let her set, and then easily clean it off with dish soap and water. Also, glue on new pad is fast sticking so make sure it is lined up properly. By the way, shipping very quick, very quick. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes