A flashing value can have a model-specific warning or setting meaning. It should not be interpreted from another brand's symbol list.
What the observation tells you
Some interfaces flash while a target has not been reached; others use flashing during selection or after an interruption. The distinction changes the appropriate next step. Repeatedly selecting a colder value may not clear the underlying condition and can obscure the original setting.
A useful next step
Check the exact manual, note any accompanying sound and assess food storage. If the display remains unexplained, provide a clear photograph and the complete model reference for advice.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.