Some designs use different fuel arrangements for separate functions. Never infer the grill's type solely from the oven or hob.
What the observation means
This distinction matters when describing a failure and arranging suitable service. An illuminated display or working burner does not verify the separate grill's supply or operation.
A useful next step
Check the model specification and report the affected section clearly. Do not attempt to trace pipes or wires inside the cooker. A gas-related concern must follow gas-safety guidance, while electrical tripping requires its own assessment; neither is resolved by another section continuing to work.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.