Index: firmware/App/Modes/Dialysis.c
===================================================================
diff -u -r833dc8408890ca24e537ccfd7cbc7f47abe19aa4 -rc65f61087e62766e631f8fe1e07d488ee29147cf
--- firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 833dc8408890ca24e537ccfd7cbc7f47abe19aa4)
+++ firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision c65f61087e62766e631f8fe1e07d488ee29147cf)
@@ -7,8 +7,8 @@
 *
 * @file    Dialysis.c
 *
-* @author  (last)      Michael Garthwaite
-* @date    (last)      15-May-2023
+* @author  (last)      Sean Nash
+* @date    (last)      11-Jul-2023
 *
 * @author  (original)  Sean
 * @date    (original)  15-Jan-2020
@@ -297,6 +297,10 @@
     setAlarmUserActionEnabled( ALARM_USER_ACTION_RESUME, TRUE );
     setAlarmUserActionEnabled( ALARM_USER_ACTION_RINSEBACK, TRUE );
     setAlarmUserActionEnabled( ALARM_USER_ACTION_END_TREATMENT, TRUE );
+
+    //Set substate for event
+    setCurrentSubState( (U32)currentDialysisState );
+    setCurrent4thLevelState( (U32)currentUFState );
 }
 
 /*********************************************************************//**
@@ -441,6 +445,7 @@
     {
         accept = TRUE;
         salineBolusStartRequested = TRUE;
+        signalInitiatePressureStabilization();
     }
 
     // Send response
@@ -481,6 +486,7 @@
     {
         accept = TRUE;
         salineBolusAbortRequested = TRUE;
+        signalInitiatePressureStabilization();
     }
 
     // Send response
@@ -790,6 +796,7 @@
 
     if ( priorSubState != currentUFState )
     {
+        setCurrent4thLevelState( (U32)currentUFState );
         SEND_EVENT_WITH_2_U32_DATA( HD_EVENT_SUB_STATE_CHANGE, priorSubState, currentUFState );
     }
 
@@ -834,8 +841,10 @@
             break;
     }
 
-    if ( priorSubState != currentSalineBolusState )
+    // MAX DELIVERED transitions different and sends the event on its own.
+    if ( priorSubState != currentSalineBolusState && currentSalineBolusState != SALINE_BOLUS_STATE_MAX_DELIVERED )
     {
+        setCurrent4thLevelState( (U32)currentSalineBolusState );
         SEND_EVENT_WITH_2_U32_DATA( HD_EVENT_SUB_STATE_CHANGE, priorSubState, currentSalineBolusState );
     }
 
@@ -914,6 +923,7 @@
         if ( SALINE_BOLUS_STATE_IDLE == currentSalineBolusState )
         {
             *dialysisState = DIALYSIS_SALINE_BOLUS_STATE;
+            setCurrent4thLevelState( (U32)currentSalineBolusState );
         }
         else
         {
@@ -965,6 +975,7 @@
             result = UF_PAUSED_STATE;
             // Go to saline bolus state
             *dialysisState = DIALYSIS_SALINE_BOLUS_STATE;
+            setCurrent4thLevelState( (U32)currentSalineBolusState );
         }
         else
         {
@@ -992,9 +1003,9 @@
     {
         salineBolusStartRequested = FALSE;
         // Cmd all pumps to stop
-        setBloodPumpTargetFlowRate( 0, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_CLOSED_LOOP );
-        setDialInPumpTargetFlowRate( 0, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_CLOSED_LOOP );
-        setDialOutPumpTargetRate( 0, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_CLOSED_LOOP );
+        setBloodPumpTargetFlowRate( 0, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );
+        setDialInPumpTargetFlowRate( 0, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );
+        setDialOutPumpTargetRate( 0, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );
         stopSyringePump();
         // Begin saline bolus
         result = SALINE_BOLUS_STATE_WAIT_FOR_PUMPS_STOP;
@@ -1073,6 +1084,8 @@
     if ( ( totalSalineVolumeDelivered_mL >= (F32)MAX_SALINE_VOLUME_DELIVERED ) )
     {
         result = SALINE_BOLUS_STATE_MAX_DELIVERED;
+        setCurrent4thLevelState( (U32)result );
+        sendOperationStatusEvent();
     }
     else
     {
@@ -1095,6 +1108,8 @@
         // Hard stop blood and dialysate pumps
         signalBloodPumpHardStop();
         signalDialInPumpHardStop();
+        // Tell DG to stop heating dialysate
+        cmdStopDGTrimmerHeater();
         // Send last saline bolus data
         salineBolusBroadcastTimerCtr = SALINE_BOLUS_DATA_PUB_INTERVAL;
         publishSalineBolusData();
@@ -1110,7 +1125,13 @@
             {
                 autoResumeUF = FALSE;
                 currentUFState = UF_RUNNING_STATE;
+                //Set substate for event
+                setCurrentSubState( (U32)DIALYSIS_UF_STATE );
+                setCurrent4thLevelState( (U32)currentUFState );
+                sendOperationStatusEvent();
+
             }
+            signalInitiatePressureStabilization();
             // Resume dialysis
             transitionToDialysis();
         }