Index: firmware/App/Modes/ModeRecirculate.c
===================================================================
diff -u -r2fafa5769ca6850277200ae0ec08a0e508b0d2ed -r0a313ac4ec34865255e72089fded191b951b62de
--- firmware/App/Modes/ModeRecirculate.c	(.../ModeRecirculate.c)	(revision 2fafa5769ca6850277200ae0ec08a0e508b0d2ed)
+++ firmware/App/Modes/ModeRecirculate.c	(.../ModeRecirculate.c)	(revision 0a313ac4ec34865255e72089fded191b951b62de)
@@ -130,6 +130,11 @@
     checkInletPressure();
     checkRORejectionRatio();
 
+    if ( FALSE == isHDCommunicating() )
+    {
+        requestNewOperationMode( DG_MODE_STAN );
+    }
+
     // execute current re-circulate state
     switch ( recircState )
     {