Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -r9cea87bcc9b7bdafa3622e9e8b3b40674575e389 -r47b9eac9350a827316de147b7c62c31986851d38
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 9cea87bcc9b7bdafa3622e9e8b3b40674575e389)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 47b9eac9350a827316de147b7c62c31986851d38)
@@ -167,7 +167,6 @@
 static ALARM_ID_T alarmDetectedPendingTrigger;                                                                 ///< Heat disinfect alarm to raise.
 static BOOL isDrainPumpInMixDrainOn = FALSE;                                                                   ///< Flag to indicate the drain pump is on during mix drain.
 static U32 ROFCoolingTimer = 0;                                                                                ///< RO filter cooling timer.
-static BOOL hasROFCirculationBeenStarted = FALSE;                                                              ///< Flag to indicate the water in RO filter has been recirculated.
 static U32 targetDisinfectTime = 0;                                                                            ///< Target disinfect time.
 static BOOL haveDrainParamsBeenInit[ NUM_OF_DG_RESERVOIRS ];                                                   ///< Boolean flag to indicate whether the drain parameters have been reset or not.
 static U32 tempGradOutOfRangeTimer;                                                                            ///< Temperature gradient out of range start timer.
@@ -220,8 +219,7 @@
  * R1HeatDisinfectVol, R2HeatDisinfectVol, overallHeatDisinfectTimer,
  * cancellationMode, rsrvrFillStableTimeCounter, prevHeatDisinfectState
  * isPartialDisinfectInProgress, isDrainPumpOnInMixDrain,
- * hasROFCirculationBeenStarted, ROFCirculationTimer, targetDisinfectTime,
- * concentratePumpsPrimeTimer,
+ * ROFCoolingTimer, targetDisinfectTime, concentratePumpsPrimeTimer,
  * haveDrainParamsBeenInit, tempGradOutOfRangeTimer
  * @return none
  *************************************************************************/
@@ -244,7 +242,6 @@
     isPartialDisinfectInProgress                = FALSE;
     isDrainPumpInMixDrainOn                     = FALSE;
     ROFCoolingTimer                             = 0;
-    hasROFCirculationBeenStarted                = FALSE;
     concentratePumpsPrimeTimer                  = 0;
     targetDisinfectTime                         = 0;
     haveDrainParamsBeenInit[ DG_RESERVOIR_1 ]   = FALSE;