Drain pump and no water going in

This most likely is not a level switch problem. Take the kick plate off (after turning circuit breaker OFF), look down in the base off the dw and youll probably see some water. Use a wet vac or towel to remove all water. The drain pump will now shut off and unit should function normally. You can now run the dw with the kick plate off and using a flashlight look for leaks. The bosch dw has a float switch in the base, water will activate this switch which will shut off the water valve and only allow the drain pump to run....it thinks it has a leak!
Make sure the disposal is draining properly & drain hose is not kinked as these are the most common reasons for your problem.