Report the fault, whether the sink remains usable and whether there is a leak, electrical concern or insecure mounting. Include clear accessible photographs and the model reference if it can be obtained safely.
What the observation tells you
Agree who is arranging access and authorising work before buying parts or dismantling the appliance. Avoid stating that the motor has failed when the observation is only that it will not start. A precise symptom report helps the responsible person choose the right assessment.
A useful next step
Keep the disposer unused when safety is uncertain and notify other household members. Record any existing isolation instruction so it remains in place until the repair is handled.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.