Approved exterior cleaning helps keep accessible surfaces and openings clear and makes damage easier to notice. It does not substitute for the separate internal filter routine.
Understanding this situation
Use the manufacturer's permitted cloth and product, avoiding sprays into controls, sockets or vents. A thick dust layer near an opening may warrant reviewing the surrounding storage and cleaning arrangement.
A useful next step
Clean with the appliance safe and avoid moving heavy or stacked equipment to reach hidden areas. If scorch marks, cable damage or unusual heat are noticed, stop use and seek appropriate advice rather than covering them with a cleaner or polish.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.