It can trigger an unintended command or obstruction response, depending on the design. The control area must remain clear.
What the observation means
A pan handle, utensil or cleaning cloth can affect sensors without touching an active zone. This differs from the entire appliance losing its electrical supply.
A useful next step
Remove loose objects safely and follow any displayed instruction. If the hob continues to switch unexpectedly when clear and dry, stop using it and record the behaviour. Do not cover or tape a sensor to prevent further switching while cooking continues.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.