My lovely wife ran the self-cleaning cycle yesterday and now the oven won't heat. Fan makes a slightly funny noise, and online "research" indicates it may be a blown thermal fuse (seems to be a widespread problem w/ Kitchenaid ovens; fuse can't handle the high temps of self-cleaning). I can't find any diagrams online that would enable me to save some money by getting the part and fixing it myself. Can anyone help? Thanks VERY much.