Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -rb0f90032367640dd22ddfbe0307a20cb6e931ceb -r96dd3e3d17fdfd5b70870bfc15d12a147f4900ee
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision b0f90032367640dd22ddfbe0307a20cb6e931ceb)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 96dd3e3d17fdfd5b70870bfc15d12a147f4900ee)
@@ -167,10 +167,7 @@
  * @brief
  * The initFillMode function initializes the fill mode module.
  * @details Inputs: none
- * @details Outputs: fillState, dialysateFillStartTime, reservoirBaseWeight,
- * totalROFlowRateMLPM, concentrateTestStartTime, acidConductivityTotal,
- * bicarbConductivityTotal, conductivitySampleCount, havePauseActuatorsBeenSet
- * concentratePumpPrimeCount, hasROOnlyModeBeenEnabled
+ * @details Outputs: fill mode variables initialized.
  * @return none
  *************************************************************************/
 void initFillMode( void )
@@ -454,11 +451,12 @@
  * only mode has been enabled.
  * @details Inputs: none
  * @details Outputs: hasROOnlyModeBeenEnabled
+ * @param enableROOnlyMode TRUE if the RO only mode is requested otherwise, FALSE
  * @return none
  *************************************************************************/
-void enableROOnlyMode( void )
+void setROMode( BOOL enableROOnlyMode )
 {
-    hasROOnlyModeBeenEnabled = TRUE;
+    hasROOnlyModeBeenEnabled = enableROOnlyMode;
 }
 
 /*********************************************************************//**
@@ -876,7 +874,7 @@
                     // Fault alarm per PRS 483
                     SET_ALARM_WITH_2_F32_DATA( ALARM_ID_DG_OUTLET_PRIMARY_CONDUCTIVITY_OUT_OF_RANGE, avgCPo, MAX_CPO_CONDUCTIVITY_ALLOW );
                 }
-                if ( ( avgRR > MAX_RO_REJECTION_RATIO_ALLOW ) && ( FALSE == isROOnlyModeEnabled() ) )
+                if ( ( avgRR > MAX_RO_REJECTION_RATIO_ALLOW ) && ( isROOnlyModeEnabled() != TRUE ) )
                 {
                     // Fault alarm per PRS 483
                     SET_ALARM_WITH_2_F32_DATA( ALARM_ID_RO_REJECTION_RATIO_OUT_OF_RANGE, avgRR, MAX_RO_REJECTION_RATIO_ALLOW );