Follow the manufacturer's exterior-care instructions and keep water away from electrical parts. Safely isolate the appliance before cleaning where the manual requires it, and avoid spraying the casing or control box.
What the observation tells you
A wipe of an accessible surface is different from washing the whole unit. Do not soak labels, force liquid into openings or dismantle covers to reach dirt. Leave the rating information readable because it is needed for parts and service identification.
A useful next step
If grime is actually a track left by repeated leakage, record the wet area before cleaning it away. Arrange assessment of the source instead of repeatedly wiping the symptom dry.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.