1. Neither the heating element nor the pilot light works:
Why: The mains cable is not connected.
How to: Connect the main cable.
Why: No current.
How to: Check and repair the main cable.
2. The pans adhere to the glass:
Why: Melted material between the pan and the glass.
How to: Put the plate at maximum power and try to remove the pan.
Why: Pans have aggressive bottoms.
How to: Check the base of the pans. Do not slide them on the glass.