Obtain the model, operating manual, normal control location and safe isolation method before using it. Also ask about recent faults, repairs and any connected dishwasher waste arrangement.
What the observation tells you
An appliance left in place may have a nonstandard accessory, missing stopper or an unresolved issue that is not obvious from above the sink. A quick motor run is not a substitute for understanding those details. Look for accessible signs of leaks without disturbing connections.
A useful next step
If reliable information is unavailable, arrange an assessment before ordinary use. Keep the confirmed instructions with the household records so everyone operates the same arrangement correctly.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.