Index: firmware/App/Modes/Prime.c
===================================================================
diff -u -r4ea8e54cb242a694877529952b89c97bd34a25dd -r2dd90b6861e4cd229253ecb12467af5d657bb433
--- firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 4ea8e54cb242a694877529952b89c97bd34a25dd)
+++ firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 2dd90b6861e4cd229253ecb12467af5d657bb433)
@@ -7,8 +7,8 @@
 *
 * @file    Prime.c
 *
-* @author  (last)      Sean Nash
-* @date    (last)      03-Jun-2023
+* @author  (last)      Michael Garthwaite
+* @date    (last)      09-Jun-2023
 *
 * @author  (original)  Quang Nguyen
 * @date    (original)  08-Dec-2020
@@ -996,6 +996,7 @@
 
     if ( TRUE == isWetSelfTestsPassed() )
     {
+        setCurrent4thLevelState( NO_SUB_STATE );
         state = HD_PRIME_COMPLETE;
     }
     else if ( TRUE == doesAlarmStatusIndicateStop() )
Index: firmware/App/Modes/TreatmentStop.c
===================================================================
diff -u -rd1f5fb9cc566df10f9126e6296e56ed946bac66a -r2dd90b6861e4cd229253ecb12467af5d657bb433
--- firmware/App/Modes/TreatmentStop.c	(.../TreatmentStop.c)	(revision d1f5fb9cc566df10f9126e6296e56ed946bac66a)
+++ firmware/App/Modes/TreatmentStop.c	(.../TreatmentStop.c)	(revision 2dd90b6861e4cd229253ecb12467af5d657bb433)
@@ -8,7 +8,7 @@
 * @file    TreatmentStop.c
 *
 * @author  (last)      Michael Garthwaite
-* @date    (last)      16-May-2023
+* @date    (last)      09-Jun-2023
 *
 * @author  (original)  Sean
 * @date    (original)  15-Jan-2020
@@ -86,6 +86,7 @@
 {
     initTreatmentStop();
     setCurrentSubState( (U32)currentTxStopState );
+    setCurrent4thLevelState( NO_SUB_STATE );
     // Set user alarm recovery actions allowed in this sub-mode
     setAlarmUserActionEnabled( ALARM_USER_ACTION_RESUME, TRUE );