Without a preparation or storage date, it is difficult to separate an old-food issue from a recent cooling event. Labelling helps food decisions even when the appliance is working normally.
What the observation tells you
A repair visit cannot reconstruct when a meal was cooked, how long it stood out or whether it was reheated previously. Those details affect the food assessment independently of the current thermometer reading. A container found cold today may have had a different history yesterday.
A useful next step
Label future leftovers with their contents and relevant date, and follow current storage guidance. Treat uncertain food cautiously. For the appliance enquiry, provide measured conditions and the timing of any known interruption rather than relying on the unknown container.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.