Earl G Webster , MA July 31, 2015 Appliance: Samsung Microwave SMH9187ST/XAA Samsung Microwave Smh9187st/Xaa / : Se error code. How to replace Microwave Control Panel Assembly. I found the information on line to access and remove the control pad. Then I removed the control board from the pad assembly, removed the ribbon, and put the control board on the new control pad assembly, and reinstalled. Worked fine. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes