Index: firmware/App/Controllers/BalancingChamber.c
===================================================================
diff -u -r1077fee46974061e6e0038b6c0ce0e1471715b61 -rad5fb11958cfc9829b879f440cd139c7c2e26fe3
--- firmware/App/Controllers/BalancingChamber.c	(.../BalancingChamber.c)	(revision 1077fee46974061e6e0038b6c0ce0e1471715b61)
+++ firmware/App/Controllers/BalancingChamber.c	(.../BalancingChamber.c)	(revision ad5fb11958cfc9829b879f440cd139c7c2e26fe3)
@@ -132,7 +132,7 @@
     balChamberValveClosePeriod                  = 0;
     isBalChamberFillInProgress                  = FALSE;
     currentBalChamberSwitchingCounter           = 0;
-    isPressureStalbilizedDuringFill             = FALSE;
+    isPressureStabilizedDuringFill              = FALSE;
     lastTdDialysateFlowrate                     = 0.0F;
     balChamberDataPublicationTimerCounter       = 0;
     balChamberFillPressureDropCounter           = 0;
@@ -434,7 +434,7 @@
     currentBalChamberFillCounter        = 0;
     balChamberFillTimeoutCount          = 0;
     isBalChamberFillInProgress          = FALSE;
-    isPressureStalbilizedDuringFill     = FALSE;
+    isPressureStabilizedDuringFill      = FALSE;
     isPressureDroppedDuringFill         = FALSE;
     isSpentFillComplete                 = FALSE;
 
@@ -554,16 +554,12 @@
     // Check fresh dialysate pressure back in range to indicate fresh fill complete.
     if ( ( freshDialPressure >= FRESH_DIAL_PRESSURE_MIN_PSIG ) && ( freshDialPressure <= FRESH_DIAL_PRESSURE_MAX_PSIG ) )
     {
-        if ( TRUE == isFreshDialysatePressureInRange && TRUE == isSpentDialysatePressureInRange )
+        if ( ++balChamberFillCompleteStablePressureCounter >= BAL_CHAMBER_FILL_COMPLETE_MS )
         {
             // stabilized pressure indicating fresh side fill is complete
             isPressureStabilizedDuringFill = TRUE;
         }
     }
-    else
-    {
-        isPressureStalbilizedDuringFill = FALSE;
-    }
 
     // Spent side of balancing chamber fill is complete or not
     checkSpentFillComplete( spentDialPressure );
@@ -659,7 +655,7 @@
     BAL_CHAMBER_EXEC_STATE_T state      = BAL_CHAMBER_STATE2_FILL_START;
     currentBalChamberSwitchingCounter   = 0;
     isBalChamberFillInProgress          = FALSE;
-    isPressureStalbilizedDuringFill     = FALSE;
+    isPressureStabilizedDuringFill      = FALSE;
     isPressureDroppedDuringFill         = FALSE;
     balChamberSWState                   = BAL_CHAMBER_SW_STATE2;
     currentBalChamberFillCounter        = 0;
@@ -725,16 +721,12 @@
     // Check fresh dialysate pressure back in range to indicate fill complete.
     if ( ( freshDialPressure >= FRESH_DIAL_PRESSURE_MIN_PSIG ) && ( freshDialPressure <= FRESH_DIAL_PRESSURE_MAX_PSIG ) )
     {
-        if ( ( TRUE == isFreshDialysatePressureInRange ) && ( TRUE == isSpentDialysatePressureInRange ) )
+        if ( ++balChamberFillCompleteStablePressureCounter >= BAL_CHAMBER_FILL_COMPLETE_MS )
         {
             // stabilized pressure indicating fresh side fill is complete
             isPressureStabilizedDuringFill = TRUE;
         }
     }
-    else
-    {
-        isPressureStalbilizedDuringFill = FALSE;
-    }
 
     // If fill is taking too long, set an alarm for fill timeout
     if ( ( balChamberFillTimeoutCount > 0 ) && ( currentBalChamberFillCounter > balChamberFillTimeoutCount ) )
@@ -797,7 +789,7 @@
                     // When fill initiated, pressure is not dropped to the expected range, possible valve failures.
                     SET_ALARM_WITH_2_F32_DATA( ALARM_ID_DD_BC_STATE2_FILL_PRESSURE_DROP_OUT_OF_RANGE, freshDialPressure, spentDialPressure );
                 }
-                else if ( TRUE != isPressureStalbilizedDuringFill )
+                else if ( TRUE != isPressureStabilizedDuringFill )
                 {
                     // Alarm when switching time expired, but still pressure not in range which indicates fill is not completed.
                     SET_ALARM_WITH_2_F32_DATA( ALARM_ID_DD_BC_STATE2_FILL_END_PRESSURE_OUT_OF_RANGE, freshDialPressure, spentDialPressure );
Index: firmware/App/Controllers/BalancingChamber.h
===================================================================
diff -u -r1077fee46974061e6e0038b6c0ce0e1471715b61 -rad5fb11958cfc9829b879f440cd139c7c2e26fe3
--- firmware/App/Controllers/BalancingChamber.h	(.../BalancingChamber.h)	(revision 1077fee46974061e6e0038b6c0ce0e1471715b61)
+++ firmware/App/Controllers/BalancingChamber.h	(.../BalancingChamber.h)	(revision ad5fb11958cfc9829b879f440cd139c7c2e26fe3)
@@ -48,7 +48,7 @@
     U32 balChamberSwPeriod;                                             ///< Balancing chamber switching period
     BOOL isBalChamberFillInProgress;                                    ///< Whether balancing chamber fill in progress or not
     U32 currentBalChamberSwitchingCounter;                              ///< Current balancing chamber switching counter
-    BOOL isPressureStalbilizedDuringFill;                               ///< Whether pressure stabilized during fill or not
+    BOOL isPressureStabilizedDuringFill;                                ///< Whether pressure stabilized during fill or not
     BOOL balChamberSWOnlyState;                                         ///< Balancing chamber switching only status ( On/Off)
 } BAL_CHAMBER_DATA_T;