Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -r1a219888b8fda9dcbbfc51fbe76490ee247f5f14 -re8d2f473904d77870f4ebc68bdb9125ec427a662
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 1a219888b8fda9dcbbfc51fbe76490ee247f5f14)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision e8d2f473904d77870f4ebc68bdb9125ec427a662)
@@ -818,6 +818,13 @@
                 result = DG_FILL_MODE_STATE_DELIVER_DIALYSATE;
                 setModeFillStateTransition( result );
             }
+
+            // Check if the reservoir is already at the fill target level and if it is, transition to Gen Idle
+            // This case should only happen if a test configuration is enabled such as expedite pre-treatment
+            if ( TRUE == hasTargetFillVolumeBeenReached( getInactiveReservoir() ) )
+            {
+                requestNewOperationMode( DG_MODE_GENE );
+            }
         }
     }