Residual moisture can affect some touch interfaces, but persistent erratic behaviour should not be assumed harmless. Follow the model's cleaning and drying instructions.
What the observation tells you
The issue may involve a wet surface, an accidentally selected lock or actual liquid entry. Those possibilities cannot be separated by continually pressing every button. Strong cleaners can also affect printed markings or finishes.
A useful next step
Stop adding liquid, dry the permitted surface gently and check only the documented controls. If settings keep changing or the panel is damaged, arrange assessment. Do not open the housing or use heat to dry concealed electronics.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.