Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -re15a3675797c4a4099aa9a12ca6811dc75568dd1 -r590bff19845ceabf3583f8a556cd930b769ad4f3
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision e15a3675797c4a4099aa9a12ca6811dc75568dd1)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 590bff19845ceabf3583f8a556cd930b769ad4f3)
@@ -395,9 +395,15 @@
 // MSG_ID_DG_START_STOP_CHEM_DISINFECT
 BOOL sendDGStartChemicalDisinfectModeCommand( BOOL start );
 
+// MSG_ID_HD_RESPONSE_SERVICE_MODE_REQUEST
+void sendUIServiceModeResponse( BOOL accepted, U32 rejCode );
+
 // MSG_ID_HD_REQUEST_DG_SERVICE_MODE
-BOOL sendDGServiceModeRequest();
+BOOL sendDGServiceModeRequest( void );
 
+// MSG_ID_UI_REQUEST_SERVICE_MODE
+void handleUIServiceModeRequest( MESSAGE_T *message );
+
 // MSG_ID_ALARM_STATUS
 BOOL broadcastAlarmStatus( COMP_ALARM_STATUS_T almStatus );