Index: firmware/App/Services/DDInterface.c
===================================================================
diff -u -r1aedb1b649f6c427a6bf92b0e82486609bcfa698 -r8492830da5862d7eeaea89d30efb5ea5dcc22572
--- firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision 1aedb1b649f6c427a6bf92b0e82486609bcfa698)
+++ firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision 8492830da5862d7eeaea89d30efb5ea5dcc22572)
@@ -626,7 +626,28 @@
     }
 }
 
+/*********************************************************************//**
+ * @brief
+ * The cmdStartDDHeatDisinfect function sends a Heat Disinfection start
+ * request to the DD.
+ * @details \b Inputs: none
+ * @details \b Outputs: Heat Disinfection start request sent to DD.
+ * @return none
+ *************************************************************************/
+void cmdStartDDHeatDisinfect( void )
+{
+    DD_COMMAND_T command = DD_CMD_START_DISINFECT_HEAT;
 
+    ddCmdResp[ DD_CMD_START_DISINFECT_HEAT ].commandID = DD_CMD_NONE;
+
+#ifndef TEST_UI_ONLY
+    sendMessage( MSG_ID_TD_DD_HEAT_DISINFECT_REQUEST,
+                 COMM_BUFFER_OUT_CAN_TD_2_DD,
+                 (U08 *)&command, sizeof( U32 ) );
+#endif
+}
+
+
 /*************************************************************************
  *                       TEST SUPPORT FUNCTIONS
  *************************************************************************/