Roy C Missouri City , TX May 11, 2015 Appliance: Samsung Microwave SMH9187W/XAA Samsung Microwave Smh9187w/Xaa / : Se or 5e error code. How to replace Control Panel Assembly. Bought the Control Panel Assembly and installed it. So far, the problem is solved. Be aware that this is the key pad only and appears to be what goes bad on this model of the Samsung microwave. Considering it costs less than half of the version with the controller board included, this is a deal. There is something I'd suggest, mark or track with tape what plugs go where since there are several plugs that look similar to others on the control board. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes