No. A heat-pump combination can have different filter and drying-system arrangements. Use the exact model's maintenance instructions rather than a generic washer-dryer checklist.
Understanding this situation
The presence of a filter or an unusual sound should be interpreted through that design. Customer maintenance does not include opening the sealed refrigerant system or treating it like a conventional resistance-heated drying assembly.
A useful next step
Identify the full model before following cleaning advice. Ask about suitable service scope when booking, because sealed-circuit work is excluded here. Do not remove covers or attempt refrigerant-related repairs to improve drying performance.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.