Customer Questions and Answers for Operating Module Pro by Bosch

Hello Nevin, thank you for contacting APP, The 1st thing I would check, even though the unit seems to be filling well, is to remove the water inlet hose from its connections to the unit's water valve 10023852 and the source valve in the home and check that nothing is blocking the hose and that the screen on the inlet valve is clear, it does not take much of an interruption or change in water flow to generate a water code like this. Also, make sure that there is hot water being run to the nearest source such as a sink before starting a cycle as too low of inlet temperature can generate issues. If those seem good it may be an issue with the Main Control 12016887 or the Turbidity Sensor 00611323.