Hi! I have a question on this subject. My model # is CGS990SET2SS and it is mentioned as "covered" in the Service Bulletin you attached. However, on the website for the part #WB49X27927, when I put the model number in to check compatibility - it tells me it isn't compatible! Can you help? Looks like there are a couple of new deflectors with cutouts, but nothing shows compatibility. Is this so or a mistake or something else? I really need help! Thanks!Here is the Service Bulletin. RA04-16 No Heat In Lower Oven During Bake
If the lower oven is not heating in a bake setting, remove the oven floor and check the oven deflector. A deflector that has deformed could cause the bake ignitor to fail.
Replace the ignitor and install a new oven deflector WB49X27927