Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -r8cf0fafa78ce14b5dbdf95510e957846660ac2b9 -r1c76dc5459e36101f5bba40f3e92cdbb67e708d9
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 8cf0fafa78ce14b5dbdf95510e957846660ac2b9)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 1c76dc5459e36101f5bba40f3e92cdbb67e708d9)
@@ -1222,7 +1222,7 @@
             *rejReason = REQUEST_REJECT_REASON_DG_FILTER_FLUSH_HAS_BEEN_EXPIRED;
         }
 
-        if ( ( FALSE == isBasicFlushValid ) && ( FALSE == isChemFlushValid ) && ( FALSE == isHeatDisCoolFlushValid ) )
+        if ( ( FALSE == isHeatDisValid ) && ( FALSE == isChemFlushComplete ) )
         {
             *rejReason = REQUEST_REJECT_REASON_DG_DISINFECT_HAS_BEEN_EXPIRED;
         }