A normal smell cannot establish that a use-by product is safe. Some harmful contamination has no reliable visible or smell warning.
What the observation tells you
Odour can reveal spoilage, but its absence does not prove that storage temperatures or dates have been respected. This matters after a cooling problem because a container can still look ordinary even when its history is uncertain. Tasting a little is not a safe measurement method.
A useful next step
Check the label, date and known storage history. Use the relevant official food-safety advice after an interruption, and discard food where that advice requires it. An engineer can investigate the appliance but cannot certify individual foods from a description of their smell.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.