Manufacturers use similar-looking symbols for different functions, and a symbol can change meaning depending on whether it is steady or flashing. Guessing from another machine can lead to the wrong action.
Understanding this situation
Record the whole display, not just an isolated icon. A tap, lock or filter-related symbol may represent a setting, status or warning according to the model. It does not independently name a component to replace.
A useful next step
Use the manufacturer's exact manual and follow its instructions. If the meaning remains unclear, provide the image and full model to the booking team. Do not clear the display through undocumented service controls simply to make the icon disappear.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.