Some assemblies collect fibres on more than the most obvious surface. Use the model's diagram to identify which accessible faces and folds belong in routine cleaning.
Understanding this situation
Checking one side and replacing the filter can leave another intended cleaning area overlooked. This does not justify separating bonded parts or removing extra layers that are not designed to open.
A useful next step
Follow the documented sequence and inspect for damage before refitting. If a section cannot be accessed as described, stop rather than forcing it. Note the exact filter arrangement in any enquiry about persistent reminders or drying changes.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.