Geoffrey H Cary , NC September 01, 2019 Appliance: Samsung Microwave SMH9187ST/XAA Samsung Microwave Smh9187st/Xaa / : The dreaded SE error on my Samsung microwave. How to replace Grille Assy. After using a variety of YouTube temporary fixes, I finally diagnosed the problem on the AppliancePartsPros website and ordered the necessary repair part - the Assembly Control Panel (Part #D94-02001C. The part arrived in two days, and since I had some practice taking out the old part, the process of replacing it with the new panel (a relatively easy job) took less than half an hour. The microwave is now operating like new! Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes