GE Microwave/Convection Oven. Removed case (carefully). Tested in-line power cord fuse with multi-meter. Fuse was good. Noticed a scorch mark on a wire connected to the oven cavity thermal fuse. The fuse appeared to have been overheated from too much movement in it's mount. Removed part from unit and used number on the part to order a new one. Installed new part, re-assembled, and unit works fine.