My Kenmore electric range was in my apartment when I purchased it in 2002. I have been wiping out the oven with a soft soapy sponge but would like to use the self cleaning part but I cannot find a model #, only instructions on a metal panel telling me to follow the instructions for the model #. It has the old trays and spiral heating elements that you can pop out and replace . Can you give me the model # or offer any help on this? Many thanks, Margaret Byrne