Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -r981882ba5ad72f45d836aae606dadd273a888058 -r0a62c26f8c74795bd1a695de879e1a33524481ed
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 981882ba5ad72f45d836aae606dadd273a888058)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 0a62c26f8c74795bd1a695de879e1a33524481ed)
@@ -367,9 +367,13 @@
     {
         // Door closed required from Auto-loading onwards, set to false if not required in subsequent states
         doorClosedRequired( TRUE );
-        confirmTubesetPlaced   = FALSE;
-        setBloodPumpTargetFlowRate( AUTO_LOAD_BLOOD_FLOW_RATE_ML_MIN, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );
-        subState               = PRE_TX_INSTALL_STATE_AUTO_LOAD;
+
+        if ( STATE_CLOSED == getSwitchState( H9_SWCH ) )
+        {
+            confirmTubesetPlaced   = FALSE;
+            setBloodPumpTargetFlowRate( AUTO_LOAD_BLOOD_FLOW_RATE_ML_MIN, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );
+            subState               = PRE_TX_INSTALL_STATE_AUTO_LOAD;
+        }
     }
 
     return subState;
@@ -419,7 +423,6 @@
     BOOL notInValidState = FALSE;
     TD_OP_MODE_T mode = getCurrentOperationMode();
     UI_RESPONSE_PAYLOAD_T response;
-    REQUEST_REJECT_REASON_CODE_T rejReason = REQUEST_REJECT_REASON_INVALID_PAYLOAD_LENGTH;
 
     if ( 0 == message->hdr.payloadLen )
     {
@@ -428,18 +431,21 @@
 
         if ( ( mode != MODE_PRET ) || ( TRUE == notInValidState ) )
         {
-            rejReason = REQUEST_REJECT_REASON_NOT_ALLOWED_IN_CURRENT_MODE;
+            response.rejectionReason = REQUEST_REJECT_REASON_NOT_ALLOWED_IN_CURRENT_MODE;
         }
         else
         {
-            confirmTubesetPlaced = TRUE;
-            result = TRUE;
-            rejReason = REQUEST_REJECT_REASON_NONE;
+            confirmTubesetPlaced     = TRUE;
+            result                   = TRUE;
+            response.rejectionReason = REQUEST_REJECT_REASON_NONE;
         }
     }
+    else
+    {
+        SET_ALARM_WITH_2_U32_DATA( ALARM_ID_TD_SOFTWARE_FAULT, SW_FAULT_ID_INVALID_MESSAGE_PAYLOAD_LENGTH, (U32)message->hdr.payloadLen );
+    }
 
     response.accepted = result;
-    response.rejectionReason = rejReason;
     sendMessage( MSG_ID_TD_ADJUST_DISPOSABLES_CONFIRM_RESPONSE, COMM_BUFFER_OUT_CAN_TD_2_UI, (U08*)(&response), sizeof( UI_RESPONSE_PAYLOAD_T ) );
 
     return result;