Paul G South Windsor , CT June 12, 2016 Appliance: Samsung Microwave SMH9187W/XAA Samsung Microwave Smh9187w/Xaa / : Se error code on samsung microwave. How to replace Control Panel Assembly. Your company is not kidding when you say your order will ship the same day you place an order. I choose regular shipping and the part was sitting on my door step the next day before noon. As far as replacing the control unit, I had disassembled the unit twice before to try and fix it on my own before figuring out exactly what the problem was. So replacing the part was quite easy. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes