Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r656f3ada9ab5dff1d6c377d237e799f3ab5ba7c3 -r752ec32e48ba27c3939d7e8ec56091cb917e3eef
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 656f3ada9ab5dff1d6c377d237e799f3ab5ba7c3)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 752ec32e48ba27c3939d7e8ec56091cb917e3eef)
@@ -1432,12 +1432,13 @@
     if ( message->hdr.payloadLen == sizeof( U32 ) + sizeof( U32 ) )
     {
         U32 mode;
+        U32 subMode;
 
-        // NOTE: the HD operations modes broadcast message contains the mode and submode states
-        // In this case, only the mode is needed. The mode is received to check if HD is in treatment
-        // and therefore, DG can void the last disinfect.
         memcpy( payloadPtr, &mode, sizeof( U32 ) );
-        setHDOperationMode( mode );
+        payloadPtr += sizeof( U32 );
+        memcpy( payloadPtr, &subMode, sizeof( U32 ) );
+
+        setHDOperationMode( mode, subMode );
         status = TRUE;
     }