Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -ra1a0187daedaf2c12e6f9eccfbf9e423d952e029 -r42c6233847246407d81549a66458b12d3e3a27ac
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision a1a0187daedaf2c12e6f9eccfbf9e423d952e029)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 42c6233847246407d81549a66458b12d3e3a27ac)
@@ -282,7 +282,6 @@
         }
 
         haveHDDGServicesBeenExpired( &rejReason );
-
         isDGDisinfectValid( &rejReason );
     }
 
@@ -1309,7 +1308,7 @@
             *rejReason = REQUEST_REJECT_REASON_DG_FILTER_FLUSH_HAS_BEEN_EXPIRED;
         }
 
-        if ( ( FALSE == isHeatDisValid ) && ( FALSE == isChemFlushComplete ) )
+        if ( ( FALSE == isHeatDisValid ) || ( FALSE == isChemFlushComplete ) || ( FALSE == hasDisBeenDone ) )
         {
             *rejReason = REQUEST_REJECT_REASON_DG_DISINFECT_HAS_BEEN_EXPIRED;
         }