Use the control diagram for the exact model. A zero, circle or line may have a specific meaning that should not be inferred from another appliance.
What the observation tells you
Accidentally selecting off during cleaning can leave a power light or other indicator confusing the account. Conversely, turning the dial to an extreme does not guarantee the intended freezing condition. Worn markings make guessing particularly unreliable.
A useful next step
Confirm the correct normal position from the instructions and check the resulting storage appropriately. If the control is loose or unreadable, report that damage rather than estimating its internal position.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.