Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r5fa843c018ed7c4b19013bbecf694b5a1596d166 -r06f7d5571359c1707fc32bb4e2f2e23f6ea32a2e
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 5fa843c018ed7c4b19013bbecf694b5a1596d166)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 06f7d5571359c1707fc32bb4e2f2e23f6ea32a2e)
@@ -204,7 +204,7 @@
     dgTdiTempCounter.prevTdiTempDownCounter         = 0;
     dgTdiTempCounter.clearAlarmStartTime            = 0;
     dgTdiTempCounter.dgPrevActiveReservoir          = DG_RESERVOIR_2;
-    dgTdiTempCounter.dgTempActiveReservoir          = DG_RESERVOIR_2;
+    dgTdiTempCounter.dgCurrentActiveReservoir       = DG_RESERVOIR_2;
 }
 
 /**********************************************************************//**
@@ -1285,7 +1285,7 @@
     BOOL isTDiTempBelowDialysateTarget = ( dgDialysateTemp <= TDiLow ? TRUE : FALSE );
     BOOL isTempBelowTrigger            = (BOOL)( isTDITempBelowLowSafety || isTDiTempBelowDialysateTarget );
     BOOL isTempAboveTrigger            = (BOOL)( isTDiTempAboveLowSafety || isTDiTempAboveDialysateTarget );
-    DG_RESERVOIR_ID_T CurrentActiveRes = getDGActiveReservoir();
+    DG_RESERVOIR_ID_T currentActiveRes = getDGActiveReservoir();
 
 #ifndef _RELEASE_
     if ( getSoftwareConfigStatus( SW_CONFIG_DISABLE_DIALYSATE_TEMP_CHECK ) != SW_CONFIG_ENABLE_VALUE )
@@ -1314,7 +1314,7 @@
         }
 
         // Tdi high temp alarm handling
-        if ( CurrentActiveRes != dgTdiTempCounter.dgPrevActiveReservoir )
+        if ( currentActiveRes != dgTdiTempCounter.dgPrevActiveReservoir )
         {
             //Increment up count when temperature is exceeded the defined threshold
             if ( TRUE == isTempAboveTrigger )
@@ -1329,8 +1329,8 @@
                 dgTdiTempCounter.tdiTempDownCounter++;
             }
 
-            //hold current reservoir in a temporary variable
-            dgTdiTempCounter.dgTempActiveReservoir = CurrentActiveRes;
+            //get current reservoir value
+            dgTdiTempCounter.dgCurrentActiveReservoir = currentActiveRes;
         }
         else
         {
@@ -1348,8 +1348,8 @@
             dgTdiTempCounter.prevTdiTempDownCounter         = dgTdiTempCounter.tdiTempDownCounter;
             dgTdiTempCounter.tdiTempUpCounter               = 0;
             dgTdiTempCounter.tdiTempDownCounter             = 0;
-            // assign last temp reservoir to previous Active reservoir value once reservoir switch happened
-            dgTdiTempCounter.dgPrevActiveReservoir          = dgTdiTempCounter.dgTempActiveReservoir;
+            // assign last current reservoir to previous Active reservoir value once reservoir switch happened
+            dgTdiTempCounter.dgPrevActiveReservoir          = dgTdiTempCounter.dgCurrentActiveReservoir;
         }
 
         // check clear condition first
Index: firmware/App/Controllers/DGInterface.h
===================================================================
diff -u -r5fa843c018ed7c4b19013bbecf694b5a1596d166 -r06f7d5571359c1707fc32bb4e2f2e23f6ea32a2e
--- firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 5fa843c018ed7c4b19013bbecf694b5a1596d166)
+++ firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 06f7d5571359c1707fc32bb4e2f2e23f6ea32a2e)
@@ -104,7 +104,7 @@
     U32 prevTdiTempDownCounter;                                             ///< previous tdi temperature down counter
     BOOL clearAlarmStartTime;                                               ///< to clear temp high alarm, use persistent method
     DG_RESERVOIR_ID_T dgPrevActiveReservoir;                                ///< Previous Active reservoir.
-    DG_RESERVOIR_ID_T dgTempActiveReservoir;                                ///< Temp Active reservoir.
+    DG_RESERVOIR_ID_T dgCurrentActiveReservoir;                             ///< Current Active reservoir.
 } DG_TDI_TEMP_COUNTER_T;
 
 // ********** public function prototypes **********