Index: firmware/App/Modes/PreTreatmentRecirc.c
===================================================================
diff -u -r5d9c5362b537331248dc592e05b6b016267eb6d3 -r39156e21acec61d20fa49ee0adfffedf0f8597d9
--- firmware/App/Modes/PreTreatmentRecirc.c	(.../PreTreatmentRecirc.c)	(revision 5d9c5362b537331248dc592e05b6b016267eb6d3)
+++ firmware/App/Modes/PreTreatmentRecirc.c	(.../PreTreatmentRecirc.c)	(revision 39156e21acec61d20fa49ee0adfffedf0f8597d9)
@@ -32,19 +32,19 @@
 
 // ********** private definitions **********
 
-#define BLOOD_PUMP_RECIRC_FLOW_RATE                         100                 ///< Blood pump flow rate during recirculation in mL/min.
+#define BLOOD_PUMP_RECIRC_FLOW_RATE                         100                             ///< Blood pump flow rate during recirculation in mL/min.
 // TODO: Restore to 100 when DPi flow control is fixed.
-#define DIALYSATE_PUMP_RECIRC_FLOW_RATE                     250                 ///< Dialysate pump flow rate during recirculation in mL/min.
-#define WARNING_MEDIUM_PRIME_COMPLETED_TIME_MS     ( 90 * 60 * MS_PER_SECOND )  ///< Pre-Treatment recirc time before medium priority warning in min.
-#define WARNING_HIGH_PRIME_COMPLETED_TIME_MS      ( 120 * 60 * MS_PER_SECOND )  ///< Pre-Treatment recirc time before high priority alarm in min.
+#define DIALYSATE_PUMP_RECIRC_FLOW_RATE                     250                             ///< Dialysate pump flow rate during recirculation in mL/min.
+#define WARNING_MEDIUM_PRIME_COMPLETED_TIME_MS              ( 90 * 60 * MS_PER_SECOND )     ///< Pre-Treatment recirc time before medium priority warning in min.
+#define WARNING_HIGH_PRIME_COMPLETED_TIME_MS                ( 120 * 60 * MS_PER_SECOND )    ///< Pre-Treatment recirc time before high priority alarm in min.
 
 // ********** private data **********
 
-static HD_PRE_TREATMENT_RECIRC_STATE_T currentPreTreatmentRecircState;          ///< Current state of the pre-treatment recirculate state machine.
-static BOOL recircResumeRequested;                                              ///< Flag indicates alarm requesting to resume pre-treatment recirculate.
-static U32  preTxRecircStartTime;                                               ///< Time pre-treatment re-circulate state started.
-static BOOL recircTOWarningGiven;                                               ///< Flag indicates 90 minute warning given.
-static BOOL recircTOAlarmGiven;                                                 ///< Flag indicates 2 hour alarm triggered.
+static HD_PRE_TREATMENT_RECIRC_STATE_T currentPreTreatmentRecircState;                      ///< Current state of the pre-treatment recirculate state machine.
+static BOOL recircResumeRequested;                                                          ///< Flag indicates alarm requesting to resume pre-treatment recirculate.
+static U32  preTxRecircStartTime;                                                           ///< Time pre-treatment re-circulate state started.
+static BOOL recircTOWarningGiven;                                                           ///< Flag indicates 90 minute warning given.
+static BOOL recircTOAlarmGiven;                                                             ///< Flag indicates 2 hour alarm triggered.
 
 // ********** private function prototypes **********
 
Index: firmware/App/Modes/Prime.c
===================================================================
diff -u -r5d9c5362b537331248dc592e05b6b016267eb6d3 -r39156e21acec61d20fa49ee0adfffedf0f8597d9
--- firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 5d9c5362b537331248dc592e05b6b016267eb6d3)
+++ firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 39156e21acec61d20fa49ee0adfffedf0f8597d9)
@@ -170,7 +170,6 @@
     primeStartTime                   = 0;
     primePauseStartTime              = 0;
     primeStatusBroadcastTimerCounter = 0;
-
 }
 
 /*********************************************************************//**
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r03bd494bf7b7c96f79cf9b8bd0f99432982b9571 -r39156e21acec61d20fa49ee0adfffedf0f8597d9
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 03bd494bf7b7c96f79cf9b8bd0f99432982b9571)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 39156e21acec61d20fa49ee0adfffedf0f8597d9)
@@ -791,14 +791,14 @@
  *************************************************************************/
 void handleUITreatmentLogDataRequest( MESSAGE_T *message )
 {
+    BOOL ack = FALSE;
+
     if ( 0 == message->hdr.payloadLen )
     {
+        ack = TRUE;
         sendTreatmentLogDataToUI();
     }
-    else
-    {
-        sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_HD_2_UI, FALSE );
-    }
+    sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_HD_2_UI, ack );
 }
 
 /*********************************************************************//**