A dishwasher can run without soap or water for a short period, but it is not recommended to do so as it can cause potential damage to the appliance. Here's what you should know:
Running without soap: If you accidentally start the dishwasher without adding detergent, the dishwasher will go through its usual cycle, spraying water and attempting to wash the dishes. However, without detergent, the dishes won't be properly cleaned, and you might end up with dirty dishes at the end of the cycle.
Running without water: If you start the dishwasher without water, it will likely make unusual noises and show error codes or indicators on its control panel. Modern dishwashers are designed with safety features that prevent the main wash pump from running when there's no water. So, if you attempt to run the dishwasher without water, it shouldn't cause any severe damage to the machine itself.
However, it's essential not to run the dishwasher without water for an extended period, as the motor and other components can overheat due to the lack of water for cooling. This could potentially lead to damage and require costly repairs.
If you accidentally start the dishwasher without water or soap, it's best to stop the cycle immediately by opening the dishwasher door or canceling the program through its control panel. Then, add the required detergent and check the water supply before starting a new cycle.
Remember, always make sure the dishwasher is properly filled with water and detergent before starting any wash cycle to ensure effective and safe operation. If you encounter any issues or concerns with your dishwasher, refer to the user manual or contact a professional technician for assistance.