Ken P Noble , OK April 26, 2015 Appliance: Model GE ADVANTIUM MICROWAVE SCB2001KSS02 Sparking and smoke inside advantium (burn marks on bottom of tray) Replaced turntable. The axels of the small wheels on the turn table degraded after hard usage (20 minutes of near continuous use on small tasks). They would now spark and smoke with noxious fumes. Trivial solution: replace the turn table (the wheels don't seem to be replaceable). 18 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes