An end-time or delayed-start selection may schedule heating for later. Check the complete timing display before treating the waiting period as a failure.
What the observation means
A duration combined with a finish time can create an automatic delay. The screen may look ready while the oven is intentionally waiting. Perishable food must not be left in unsuitable conditions during an improvised delay.
A useful next step
Use the manual's cancellation procedure if the delay was unintended. Record any clock or automatic symbol that remains. If a confirmed immediate-start programme still does not heat, describe that separately rather than repeatedly resetting every preference.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.