If you need to reset your Samsung dishwasher, you will first want to ensure that the dishwasher is powered off. Do this by either unplugging the appliance or switch off the power on the circuit breaker. Once the power is no longer running to the dishwasher, locate the power reset button. This should be found at the bottom of the left panel inside the dishwasher, or possibly the back. With a paper clip or other thin object, press and hold the power reset button for 3-5 seconds and then release it. This will initiate a factory reset on your dishwasher, returning it to its default settings. Once this is complete, plug back in the appliance and switch the power on at the circuit breaker. You should now be able to turn on the dishwasher and use it as normal.