Possible Causes:
The level sensor has failed to detect the liquid that is in the vessel. If the vessel is full and this fault screen appears, press <STOP> to drain the fluid. You may want to capture the solution and re-use it. See DELTA Service Procedure 007 for Analog Level Sensor Cleaning and Testing.
Water or Solution supply is inadequate. Replace the cubetainers if they are empty. Check to see if the water supply is turned on.
Water Supply Valve may not be functioning. With the bag suspender removed from the vessel, press <ENTER>. Once liquid is observed flowing into the vessel, replace bag suspender if performing a rinse and close the lid. If no liquid is flowing into the vessel, the fill valve or the water valve may not be functioning. See DELTA Service Procedure 16.