Posted by: J. Kobari 20 Sep. 2020 I had the same problem, as burning smells moment after MW oven is turned on. My MW oven model is “Sharp Insight Pro. 24 inch” I opened the oven enclosure and found burned black carbon powder around the shaft of stirrer fan (serious attention should be paid to avoid turning the MW on, while its enclosure is opened) . I removed insulation sheet from inside of MW oven compartment at its top, which covers the stirrer blade, and I found more black powder and burning residue at the joint of plate and shaft of the stirrer blade (Model # FPLT-B002MRY0A). I also noticed that the stirrer blade is not turning while the fan’s motor is running, I was sure fan’s motor is working properly as I had removed and test the fan separately (Model; RMOTDA283WRZZ ). Here is the root cause of the problem; the shaft and plate of stirrer blade are metal parts, firmly connected as one piece with zero resistance in between. For some reasons the joint between shaft and plate became loose, (fan’s motor...