Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -raa8dbad6005f0f63b846673ac1656b003fbf85e3 -r17866369994bf90a993d850c951cfc4a05235b94
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision aa8dbad6005f0f63b846673ac1656b003fbf85e3)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 17866369994bf90a993d850c951cfc4a05235b94)
@@ -730,7 +730,7 @@
 #endif
 
 #ifndef DISABLE_DIALYSATE_CHECK  // SRSDG 400
-        if ( TRUE == isValueWithinPercentRange( avgBicarbConductivity, BICARB_NORMAL_CONDUCTIVITY, FIVE_PERCENT_FACTOR ) )
+        if ( FALSE == isValueWithinPercentRange( avgBicarbConductivity, BICARB_NORMAL_CONDUCTIVITY, FIVE_PERCENT_FACTOR ) )
         {
             fillStatus.isThisFirstFill = TRUE;
             setBadAvgConductivityDetectedFlag( TRUE );          // signal idle bad avg conductivity detected
@@ -739,7 +739,7 @@
             activateAlarmNoData ( ALARM_ID_CREATING_DIALYSATE_PLEASE_WAIT );
         }
 
-        if ( TRUE == isValueWithinPercentRange( avgAcidConductivity, ACID_NORMAL_CONDUCTIVITY, FIVE_PERCENT_FACTOR ) )
+        if ( FALSE == isValueWithinPercentRange( avgAcidConductivity, ACID_NORMAL_CONDUCTIVITY, FIVE_PERCENT_FACTOR ) )
         {
             fillStatus.isThisFirstFill = TRUE;
             setBadAvgConductivityDetectedFlag( TRUE );          // signal idle bad avg conductivity detected