Hi The light in in my built-in oven has gone and I do not have an instruction book to guide me (not with the house when we bought it). I have tried searching on your website but cannot find the 602/452 series and I am afraid I cannot find a model number. It has two knobs top right, LCD screen with two timer controls below on the left. The light is top left side in the oven with a flat surface. Can you help? Allison