Cooktop double burner quit heating.

We never could figure out how to get the glass top removed to replace the burner. Looked at several instuctional videos and they never wrong in their description of where the 2 screws were to remove it. We finally called Sears Repair. They came out the next day and fixed the problem. The scres were on the side of the stove unit, not under the oven door. Oh well, atleast it works. Part select is excellent and I would use them again. This is the 3rd time I've ordered parts.