Timothy C Chino Hills , CA July 14, 2014 Appliance: Model SMH9187B Se or 5e error In addition to the SE or 5E error, when I could get the microwave to work it would occasionally think random keys were pressed. Replacing the membrane switch panel did the trick. Just remove the control panel, peel off the old switch and stick on the new one. Couldn't be easier. 14 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes