It is generally safe to leave a dishwasher on after the cycle has ended for a short period of time. Modern dishwashers often have a feature called "Auto-Off" or "Standby Mode" that automatically shuts off the dishwasher to conserve energy after the cycle is complete.
However, it is recommended to turn off the dishwasher and unplug it from the power source when it is not in use for an extended period. This helps to minimize any potential electrical hazards and reduce energy consumption.
If you need to leave the dishwasher on briefly after the cycle has finished, it's generally acceptable for a few minutes to an hour. However, it's important to note that prolonged periods of inactivity with the dishwasher powered on may increase the risk of electrical issues or malfunctions.
Always refer to the manufacturer's guidelines and instructions specific to your dishwasher model for the most accurate and detailed information on its usage, safety precautions, and recommendations regarding leaving it on after the cycle.