Shawn G Powell , TN January 30, 2015 Appliance: Model KCMS2255BSS Light bulb had burned out It was a very easy fix. I had to remove the cover off of the microwave, by simply removing several screws, unplugging the lightbulb , plugging the new one in and putting the screws back into the cover. It took less than 5 minutes to complete the job. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes