Index: firmware/App/Modes/BloodPrime.c
===================================================================
diff -u -r24209d3d77ebdd34dbf65b656959d28d975834bc -rb20421d84b9049977c04f4752f4fc5697425f25c
--- firmware/App/Modes/BloodPrime.c	(.../BloodPrime.c)	(revision 24209d3d77ebdd34dbf65b656959d28d975834bc)
+++ firmware/App/Modes/BloodPrime.c	(.../BloodPrime.c)	(revision b20421d84b9049977c04f4752f4fc5697425f25c)
@@ -8,7 +8,7 @@
 * @file    BloodPrime.c
 *
 * @author  (last)      Dara Navaei
-* @date    (last)      25-May-2022
+* @date    (last)      01-Sep-2022
 *
 * @author  (original)  Sean Nash
 * @date    (original)  06-Feb-2021
@@ -129,6 +129,8 @@
  *************************************************************************/
 void transitionToBloodPrime( void )
 {
+    doorClosedRequired( TRUE, TRUE );
+
     // Set valves
     setValvePosition( VDI, VALVE_POSITION_C_CLOSE );
     setValvePosition( VDO, VALVE_POSITION_C_CLOSE );
@@ -235,7 +237,7 @@
         setBloodIsPrimed( TRUE );       // Signal treatment mode that blood prime is completed
         signalDialInPumpHardStop();     // Stop dialysate recirculation - dialysis sub-mode will restart dialysate pumps
         signalBloodPrimeToDialysis();   // Signal treatment mode that it's time to start dialysis
-        cmdStopDGTrimmerHeater();       // Stop trimmer heater - dialysis sub-mode will restart as appropriate
+        //cmdStopDGTrimmerHeater();       // Stop trimmer heater - dialysis sub-mode will restart as appropriate // TODO un-comment in DEN-13834
     }
     // Is blood prime taking too long based on set BP rate?
     else if ( fabs( expectedBloodPrimeVolume_mL - getBloodPrimeVolume() ) > MAX_BLOOD_PRIME_VOLUME_ERROR_ML )
@@ -295,7 +297,7 @@
 
         bloodPrimePublishTimerCtr = 0;
         data.targetBloodPrimeVolumeMl = bloodPrimeTargetVolume_mL;
-        data.deliveredBloodPrimeVolumeMl = getBloodPrimeVolume();
+        data.deliveredBloodPrimeVolumeMl = MAX( 0.0, getBloodPrimeVolume() );
         broadcastData( MSG_ID_HD_BLOOD_PRIME_PROGRESS, COMM_BUFFER_OUT_CAN_HD_BROADCAST, (U08*)&data, sizeof( BLOOD_PRIME_DATA_PAYLOAD_T ) );
     }
 }