Index: firmware/App/Modes/Dialysis.c
===================================================================
diff -u -rde22eef34c821f425e864f8dea32f61cd2141fb4 -rb5ba71b747694b4c19b276b0ca00b0fb954056c9
--- firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision de22eef34c821f425e864f8dea32f61cd2141fb4)
+++ firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision b5ba71b747694b4c19b276b0ca00b0fb954056c9)
@@ -523,7 +523,7 @@
 /*********************************************************************//**
  * @brief
  * The pauseUF function pauses ultrafiltration.
- * @details Inputs: currentDialysisState, currentUFState
+ * @details Inputs: currentDialysisState, currentUFState, setUFRate
  * @details Outputs: currentUFState, outlet pump set point
  * @return TRUE if pause successful, FALSE if not
  *************************************************************************/
@@ -538,7 +538,10 @@
          ( DIALYSIS_UF_STATE == currentDialysisState ) && ( UF_RUNNING_STATE == currentUFState ) )
     {
         result = TRUE;
-        sendTreatmentLogEventData( UF_PAUSE_EVENT, setUFRate, 0.0 );
+        if ( setUFRate > 0.0 )
+        {
+            sendTreatmentLogEventData( UF_PAUSE_EVENT, setUFRate, 0.0 );
+        }
         // Go to UF paused state
         currentUFState = UF_PAUSED_STATE;
     }
@@ -571,7 +574,7 @@
 /*********************************************************************//**
  * @brief
  * The resumeUF function resumes ultrafiltration.
- * @details Inputs: currentDialysisState, currentUFState
+ * @details Inputs: currentDialysisState, currentUFState, setUFRate
  * @details Outputs: currentUFState, outlet pump set point
  * @return TRUE if resume successful, FALSE if not
  *************************************************************************/
@@ -586,7 +589,10 @@
          ( DIALYSIS_UF_STATE == currentDialysisState ) && ( UF_PAUSED_STATE == currentUFState ) )
     {
         result = TRUE;
-        sendTreatmentLogEventData( UF_START_RESUME_EVENT, 0.0, setUFRate );
+        if ( setUFRate > 0.0 )
+        {
+            sendTreatmentLogEventData( UF_START_RESUME_EVENT, 0.0, setUFRate );
+        }
         // Restart UF time accumulation for reference volume calculation
         lastUFTimeStamp = getMSTimerCount();
         // Go to UF running state