Index: firmware/App/Controllers/Heaters.c
===================================================================
diff -u -r3ebcff44116a7853d2011c7b2f1eb38c1f37ba2a -r2610908e6147de229a37df3ec7d000e2ea5917e0
--- firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision 3ebcff44116a7853d2011c7b2f1eb38c1f37ba2a)
+++ firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision 2610908e6147de229a37df3ec7d000e2ea5917e0)
@@ -467,13 +467,18 @@
         isTargetTempAdjusted        = TRUE;
         primaryTargetTempAdjCounter = 0;
 #else
-        if ( fabs(deltaTempC) >= D5_HEAT_OUT_DEADBAND_CONTROL )
+        if ( FALSE == isTargetTempAdjusted )
         {
+            isTargetTempAdjusted      = TRUE;
+            adjustedPrimaryTargetTemp = calcTargetTemp;
+            resetPIController( PI_CONTROLLER_ID_D5_HEAT_OUTER_LOOP, calcTargetTemp, HEATERS_MIN_DUTY_CYCLE );
+        }
+        else if ( fabs(deltaTempC) >= D5_HEAT_OUT_DEADBAND_CONTROL )
+        {
             ctrl = runPIController( PI_CONTROLLER_ID_D5_HEAT_OUTER_LOOP, targetTempfromTD, measuredTempAtDialyzer );
             adjustedPrimaryTargetTemp = ctrl;
         }
 
-        isTargetTempAdjusted        = TRUE;
         primaryTargetTempAdjCounter = 0;
 #endif
     }