I recently bought a home with a thermadore 48 inch range that has a few issues. I am unable to find a model number so I can buy parts. There is a sticker on the back with a serial number and a test date of 2000. The problem with the stove are as follows: Left 2 burners wont work on xlow. Small oven & light inside not working. Need new back splash as we added a pot filler and the old one is to high. I did call Thermadore but they were no help since i could not provide a model number. Please help as I need to get this off my honeydew list..