Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r32ea72e681cbfa5496e915aad19fa7e597c7cd70 -r66cdf75b43ccb1288b1b7b5664c1876ebefc43b6
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 32ea72e681cbfa5496e915aad19fa7e597c7cd70)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 66cdf75b43ccb1288b1b7b5664c1876ebefc43b6)
@@ -1183,41 +1183,67 @@
     BOOL isTDiTempAboveDialysateTarget = ( dgDialysateTemp >= TDiHigh ? TRUE : FALSE );
     F32 TDiLow                         = dgTrimmerTempSet - DIALYSATE_TEMP_OUT_OF_TARGET_TOL_C;
     BOOL isTDiTempBelowDialysateTarget = ( dgDialysateTemp <= TDiLow ? TRUE : FALSE );
+    BOOL isTempBelowTrigger            = TRUE;
+    BOOL isTempAboveTrigger            = TRUE;
 
 #ifndef _RELEASE_
     if ( getSoftwareConfigStatus( SW_CONFIG_DISABLE_DIALYSATE_TEMP_CHECK ) != SW_CONFIG_ENABLE_VALUE )
 #endif
     {
 
+
         if ( TRUE == isAlarmActive( ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_SAFETY_TEMP ) )
         {
             isTDiTempAboveHighSafety = ( dgDialysateTemp <= ( dgTrimmerTempSet + DIALYSATE_TEMP_OUT_OF_TARGET_CLEAR_TOL_C ) ? FALSE : TRUE );
         }
         checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_SAFETY_TEMP, isTDiTempAboveHighSafety, dgDialysateTemp, dgTrimmerTempSet );
 
+        // check clear condition first
         if ( TRUE == isAlarmActive( ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP ) )
         {
-            isTDiTempAboveLowSafety = ( dgDialysateTemp <= ( dgTrimmerTempSet + DIALYSATE_TEMP_OUT_OF_TARGET_CLEAR_TOL_C ) ? FALSE : TRUE );
+            isTempBelowTrigger = ( dgDialysateTemp <= ( dgTrimmerTempSet + DIALYSATE_TEMP_OUT_OF_TARGET_CLEAR_TOL_C ) ? FALSE : TRUE );
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP, isTempBelowTrigger, dgDialysateTemp, dgTrimmerTempSet );
         }
-        checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP, isTDiTempAboveLowSafety, dgDialysateTemp, dgTrimmerTempSet );
 
-        if ( TRUE == isAlarmActive( ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP ) )
+        // We have to check the condition before calling the persistence check for
+        // both triggers so they don't to cancel each other out.
+        // Low safety does not to check false conditions since
+        // max target temp will not be higher than low safety
+        if ( TRUE == isTDiTempAboveLowSafety )
         {
-            isTDiTempAboveDialysateTarget = ( dgDialysateTemp <= ( dgTrimmerTempSet + DIALYSATE_TEMP_OUT_OF_TARGET_CLEAR_TOL_C ) ? FALSE : TRUE );
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP, isTDiTempAboveLowSafety, dgDialysateTemp, dgTrimmerTempSet );
         }
-        checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP, isTDiTempAboveDialysateTarget, dgDialysateTemp, TDiHigh );
 
-        if ( TRUE == isAlarmActive( ALARM_ID_HD_DIALYSATE_TEMP_BELOW_TARGET_TEMP ) )
+        if ( TRUE == isTDiTempAboveDialysateTarget )
         {
-            isTDITempBelowLowSafety = ( dgDialysateTemp <= ( dgTrimmerTempSet - DIALYSATE_TEMP_OUT_OF_TARGET_CLEAR_TOL_C ) ? FALSE : TRUE );
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP, isTDiTempAboveDialysateTarget, dgDialysateTemp, TDiHigh );
         }
-        checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_BELOW_TARGET_TEMP, isTDITempBelowLowSafety, dgDialysateTemp, dgTrimmerTempSet );
+        else
+        {
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP, isTDiTempAboveDialysateTarget, dgDialysateTemp, TDiHigh );
+        }
 
+        // check clear condition first
         if ( TRUE == isAlarmActive( ALARM_ID_HD_DIALYSATE_TEMP_BELOW_TARGET_TEMP ) )
         {
-            isTDiTempBelowDialysateTarget = ( dgDialysateTemp >= ( dgTrimmerTempSet - DIALYSATE_TEMP_OUT_OF_TARGET_CLEAR_TOL_C ) ? FALSE : TRUE );
+            isTempAboveTrigger = ( dgDialysateTemp <= ( dgTrimmerTempSet - DIALYSATE_TEMP_OUT_OF_TARGET_CLEAR_TOL_C ) ? FALSE : TRUE );
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_ABOVE_TARGET_TEMP, isTempAboveTrigger, dgDialysateTemp, dgTrimmerTempSet );
         }
-        checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_BELOW_TARGET_TEMP, isTDiTempBelowDialysateTarget, dgDialysateTemp, TDiLow );
+
+        // Below temp checks are reverse since min target temp can be lower than safety
+        if ( TRUE == isTDiTempBelowDialysateTarget )
+        {
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_BELOW_TARGET_TEMP, isTDiTempBelowDialysateTarget, dgDialysateTemp, TDiLow );
+        }
+
+        if ( TRUE == isTDITempBelowLowSafety )
+        {
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_BELOW_TARGET_TEMP, isTDITempBelowLowSafety, dgDialysateTemp, dgTrimmerTempSet );
+        }
+        else
+        {
+            checkPersistentAlarm(ALARM_ID_HD_DIALYSATE_TEMP_BELOW_TARGET_TEMP, isTDITempBelowLowSafety, dgDialysateTemp, dgTrimmerTempSet );
+        }
     }
 }