Pingwei L College Station , TX December 11, 2014 Appliance: Model KENMORE MICROWAVE, 10 YEARS OLD Sparking when the micorwave is turned on We ordered the part and put it in. The microwave works again. This is the best solution to the problem. Otherwise, we have to order a new microwave with the trimming set to replace the old one. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes