Its position can affect the intended airflow and suggests a different observation from a thin film on an exposed cooling wall. The model layout matters.
What the observation tells you
Do not insert a tool into an outlet or remove the surrounding panel to find more ice. A visible build-up may be only part of a concealed condition. Repeated power-off melting can also erase useful evidence without establishing why it returns.
A useful next step
Record the exact outlet, whether packages were blocking it and how cooling changed. Follow only the manufacturer's owner instructions. Seek assessment if airflow appears obstructed or storage conditions are unreliable.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.