Dale O Bakersfield , CA January 18, 2015 Appliance: Samsung Microwave SMH9187ST/XAA Samsung Microwave Smh9187st/Xaa: Samsung over the stove microwave touchpad not working (5e error ). How to replace Microwave Control Panel Assembly. Samsung over-the-counter microwave touchpad just stopped working when morning was not showing any error codes I looked online find known problems for this microwave. And found out that this is a known problem with this particular microwave did a little reading and investigating on YouTube and for the price that was available at Price parts pros.com you can't beat just fixing it right. Found apart quickly and easily on the appliance part pros website order the needed part the Price with shipping was fair I'm in Bakersfield California shipping time on website said 1 to 7 days and I received the part in 2 today's. YouTube videos were very helpful as far as how to remove bezels and control surface. All I can say it's three screws quick picture with my phone so the wires can be placed in the proper position four more screws on the control surface to remove the Circuit board reinstall all parts and microwave is working as good as new Thank you appliance parts pros for a great part price and thank you to all those people on YouTube that made it easy to R&R 7 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes