Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -ra1877093454dc5252c43f5ab11b005a85e293167 -r9b468e9886795094503fd62e6b47829876d740a3
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision a1877093454dc5252c43f5ab11b005a85e293167)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 9b468e9886795094503fd62e6b47829876d740a3)
@@ -386,6 +386,10 @@
             result = DG_FILL_MODE_STATE_DELIVER_DIALYSATE;
         }
     }
+    else
+    {
+        concentratePumpPrimeCount = 0;
+    }
 
     return result;
 }