I have the above cooker and it is rusting underneath the rings alongside the build up of debris. Problem is that there is no way to actually access and treat/clean under the cooker hood and the rust is spreading and debris building. The fact that this is a cooker, you should surely be able to clean it, neither should it rust at such a quick rte. Has anyone else had this problem? If so how did you remedy it? The company are not being very helpful.