Jeffrey Y Peck , MI September 27, 2014 Appliance: Samsung Microwave SMH9187ST/XAA Samsung Microwave Smh9187st/Xaa / : Se code. How to replace Microwave Control Panel Assembly. Researched Samsung SE Error Code Online Tried Cleaning The Ribbon Did Not Work. Next Step Was To Replace The Control Panel. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes