Stop using affected controls where electrical ingress is possible. Surface moisture and liquid entering the panel are different situations, and repeated switching is not a drying method.
Understanding this situation
Follow the manufacturer's exterior-cleaning guidance only where safe. Do not spray cleaner into gaps, remove a live panel or apply a heater to the controls.
A useful next step
Isolate safely where possible and seek appropriate advice if ingress or erratic behaviour occurred. Record the product, amount and location. A display that later lights up does not by itself confirm the electronics are safe.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.