Just recently my oven door has decided to stay open. It’s only about 1/2 inch or so but when I bake I am losing heat plus the light stays on all the time. I checked to see if something was keeping it from closing and cleaned all around the opening but there was not anything.
You will need a model number.
The model numbers are usually 3 digits, a dot then another 6 or 7 digits.
There is a site ManageMyLife.com, they have a lot of Kenmore manuals.
Also could try the Sears site.