Index: firmware/App/Modes/Prime.c
===================================================================
diff -u -r19a8bf98a7154e24c35da25225d4b55bf70ddd09 -rb6e15b38182e5a3720420889ebcdf29203a30821
--- firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 19a8bf98a7154e24c35da25225d4b55bf70ddd09)
+++ firmware/App/Modes/Prime.c	(.../Prime.c)	(revision b6e15b38182e5a3720420889ebcdf29203a30821)
@@ -7,8 +7,8 @@
 *
 * @file    Prime.c
 *
-* @author  (last)      Michael Garthwaite
-* @date    (last)      21-Apr-2022
+* @author  (last)      Bill Bracken
+* @date    (last)      24-Aug-2022
 *
 * @author  (original)  Quang Nguyen
 * @date    (original)  08-Dec-2020
@@ -52,7 +52,7 @@
 #define DIALYZER_VOLUME_SCALE_FACTOR                        0.5F                                               ///< Half of the dialyzer total volume.
 
 #define NO_AIR_DETECTED_COUNT                               ( 20 * MS_PER_SECOND )                             ///< No air detected time period count.
-#define PURGE_AIR_TIME_OUT_COUNT                            ( 60 * MS_PER_SECOND )                             ///< Time period count for purge air time out.
+#define PURGE_AIR_TIME_OUT_COUNT                            ( 120 * MS_PER_SECOND )                            ///< Time period count for purge air time out.
 #define LOAD_CELL_STEADY_VOLUME_SAMPLING_TIME               (  1 * MS_PER_SECOND )                             ///< Time load cell reading steady state detection sampling time in seconds.
 #define PRIME_DIALYSATE_BYPASS_TIME_LIMIT                   ( 15 * MS_PER_SECOND )                             ///< Time limit for priming dialysate bypass circuit.
 #define STEADY_VOLUME_COUNT_SEC                             ( 10000 / LOAD_CELL_STEADY_VOLUME_SAMPLING_TIME )  ///< Counter must be greater than 10 seconds before steady volume is true.
@@ -166,6 +166,8 @@
     setAlarmUserActionEnabled( ALARM_USER_ACTION_RINSEBACK, FALSE );
     setAlarmUserActionEnabled( ALARM_USER_ACTION_END_TREATMENT, TRUE );
 
+    doorClosedRequired( TRUE, TRUE );
+
     // Pumps should be off
     signalBloodPumpHardStop();
     signalDialInPumpHardStop();
@@ -497,7 +499,7 @@
 
     if ( TRUE == didTimeout( purgeAirTimeOutStartTime, PURGE_AIR_TIME_OUT_COUNT ) )
     {
-        activateAlarmNoData( ALARM_ID_HD_PRIME_PURGE_AIR_TIME_OUT );
+        activateAlarmNoData( ALARM_ID_HD_PRIME_SALINE_PURGE_AIR_TIME_OUT );
     }
 
     if ( AIR_TRAP_LEVEL_FLUID == getAirTrapLevel( AIR_TRAP_LEVEL_SENSOR_LOWER ) )
@@ -594,7 +596,7 @@
 
             // Calculate the time out value that must passed prior to checking for the steady state volume in the reservoir
             primeDialysateDialyzerTimeLimit = (U32)( ( ( DIALYSATE_DIALYZER_TUBE_VOLUME_ML + dialyzerDialysateVolume ) * SEC_PER_MIN * MS_PER_SECOND ) / DIALYSATE_PUMP_PRIME_FLOW_RATE_ML_MIN );
-            minimumReservoirVolume = getLoadCellWeight( LOAD_CELL_RESERVOIR_2_PRIMARY );
+            minimumReservoirVolume = getLoadCellWeight( LOAD_CELL_RESERVOIR_1_PRIMARY );
             steadyVolumeCount = 0;
             steadyVolumeSamplingStartTime = getMSTimerCount();
             primeDialysateDialyzerStartTime = getMSTimerCount();