Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -r39b5287d113697ddf9b1624a42aa1f30dabe11a4 -r323df1eba09cd27a00a56e5e38b1fffcbff3b170
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 39b5287d113697ddf9b1624a42aa1f30dabe11a4)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 323df1eba09cd27a00a56e5e38b1fffcbff3b170)
@@ -810,17 +810,20 @@
                             ( ( DIAL_IN_FLOW_QHIGHTRANSITION - QdTarget ) / ( DIAL_IN_FLOW_QHIGHTRANSITION - DIAL_IN_FLOW_QLOWTRANSITION ) ) * filteredDialInFlowMeterReading;
         }
         else
-        {   // use calculated flow rate. Assume target flow rate has already checked for out of bounds on low end.
-            estimatedFlow = calculatedFlow;
+        {
+            if ( QdTarget > DIAL_IN_FLOW_QHIGHTRANSITION)
+            {
+                estimatedFlow = filteredDialInFlowMeterReading; // Use flow sensor
+            }
+            else
+            {
+                estimatedFlow = calculatedFlow;  // use calculated flow rate.
+            }
         }
     }
 
     // Check the measured flow against estimated flow - /
     deltaFlow = 0.5 * estimatedFlow;    // 50% estimated flow
-    //if ( deltaFlow < fabs( estimatedFlow - filteredDialInFlowMeterReading ) )
-    //{
-    //    SET_ALARM_WITH_2_U32_DATA( ALARM_ID_HD_DIAL_IN_FLOW_CHECK_FAILURE, filteredDialInFlowMeterReading, estimatedFlow );
-    //}
     if ( TRUE == isDialInPumpRunning() )
     {
         if ( ( TRUE == isPersistentAlarmTriggered( ALARM_ID_HD_DIAL_IN_FLOW_CHECK_FAILURE, deltaFlow < fabs( estimatedFlow - filteredDialInFlowMeterReading ) ) ) )     // DN-31OCT2022