Index: shared/scripts/configuration/utility.py
===================================================================
diff -u -rd92045b1bd0502912c00c977a01a13c3c84fcec9 -r18c32e8fca8e270576f227e64abc8117efd6d14d
--- shared/scripts/configuration/utility.py	(.../utility.py)	(revision d92045b1bd0502912c00c977a01a13c3c84fcec9)
+++ shared/scripts/configuration/utility.py	(.../utility.py)	(revision 18c32e8fca8e270576f227e64abc8117efd6d14d)
@@ -18,6 +18,7 @@
 import squish
 from configuration import config
 from builtins import int as pyInt
+from dialin.common.hd_defs import HDOpModes
 from dialin.ui.hd_simulator import HDSimulator
 from dialin.ui.utils import waitForGUI
 
@@ -81,7 +82,7 @@
     Method to navigate to sub mode under pre-treatment screen
     @param mode - (int) pre treatment state
     """
-    hd_simulator.cmd_set_hd_operation_mode_data(5,0)
+    hd_simulator.cmd_set_hd_operation_mode_data(HDOpModes.MODE_PRET.value,0)
     
     hd_simulator.cmd_send_pre_treatment_state_data(sub_mode=mode, water_sample_state=0,consumables_self_test_state=0,
                                                    no_cartridge_self_test_state=0,installation_state=0, dry_self_test_state=0,