Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -ra1a0187daedaf2c12e6f9eccfbf9e423d952e029 -r24d04aef5315ed3d8fc5136d1da8504794ee3dc2
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision a1a0187daedaf2c12e6f9eccfbf9e423d952e029)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 24d04aef5315ed3d8fc5136d1da8504794ee3dc2)
@@ -282,7 +282,6 @@
         }
 
         haveHDDGServicesBeenExpired( &rejReason );
-
         isDGDisinfectValid( &rejReason );
     }
 
@@ -1314,6 +1313,11 @@
             *rejReason = REQUEST_REJECT_REASON_DG_DISINFECT_HAS_BEEN_EXPIRED;
         }
 
+        if ( FALSE == hasDisBeenDone )
+        {
+            *rejReason = REQUEST_REJECT_REASON_DG_DISINFECT_HAS_BEEN_EXPIRED;
+        }
+
         // If all of the above conditions are true, it means we can start a treatment
         if ( ( TRUE == hasDisBeenDone ) && ( TRUE == isHeatDisValid ) && ( TRUE == isChemFlushComplete ) && ( TRUE == isFlushValid ) )
         {