It shows a selected state, not necessarily successful heating. Pan recognition, operating restrictions and a fault can produce different outcomes behind a similar display.
What the observation means
For induction, suitable cookware is part of the system. For radiant zones, stored heat can also confuse a brief observation.
A useful next step
Check only normal controls and compatible cookware. Report the technology, zone and actual result. Do not touch the surface or run an empty pan to verify output. A persistent failure under the approved arrangement needs assessment rather than a guessed component replacement.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.