diff --git a/src/ansys/fluent/core/post_objects/post_helper.py b/src/ansys/fluent/core/post_objects/post_helper.py
index 776e50ec1b4..7457b4c4df7 100644
--- a/src/ansys/fluent/core/post_objects/post_helper.py
+++ b/src/ansys/fluent/core/post_objects/post_helper.py
@@ -128,7 +128,7 @@ def remote_surface_name(self, local_surface_name):
     # Following functions will be deprecated in future.
     def get_vector_fields(self):
         """Returns vector field."""
-        return self.field_info.get_vector_fields_info()
+        return self.field_info().get_vector_fields_info()
 
     def get_field_unit(self, field):
         """Returns the unit of the field."""
@@ -140,10 +140,8 @@ def get_field_unit(self, field):
             scheme_eval_str = f"(units/get-pretty-wb-units-from-dimension (units/inquire-dimension '{quantity}))"
             return " ".join(self._scheme_str_to_py_list(scheme_eval_str))
         else:
-            fields_info = self.field_info.get_fields_info()
-            for field_info in fields_info:
-                if field_info["solverName"] == field:
-                    return get_si_unit_for_fluent_quantity(field_info["quantity_name"])
+            fields_info = self.field_info().get_scalar_fields_info()
+            return get_si_unit_for_fluent_quantity(fields_info[field]["quantity_name"])
 
     def _field_unit_quantity(self, field):
         scheme_eval_str = f"(cdr (assq 'units (%fill-render-info '{field})))"
diff --git a/src/ansys/fluent/core/services/field_data.py b/src/ansys/fluent/core/services/field_data.py
index fb24d57fc8b..782eba3acc3 100644
--- a/src/ansys/fluent/core/services/field_data.py
+++ b/src/ansys/fluent/core/services/field_data.py
@@ -171,6 +171,7 @@ def get_scalar_fields_info(self) -> Dict[str, Dict]:
                 "display_name": field_info.displayName,
                 "section": field_info.section,
                 "domain": field_info.domain,
+                "quantity_name": field_info.quantity_name,
             }
             for field_info in response.fieldInfo
         }
diff --git a/src/ansys/fluent/core/session_solver.py b/src/ansys/fluent/core/session_solver.py
index 67d2858a6db..a67573dc582 100644
--- a/src/ansys/fluent/core/session_solver.py
+++ b/src/ansys/fluent/core/session_solver.py
@@ -117,7 +117,6 @@ def _build_from_fluent_connection(
     ):
         self._tui_service = self._datamodel_service_tui
         self._se_service = self._datamodel_service_se
-        self._settings_service = self._settings_service
         self._tui = None
         self._workflow = None
         self._system_coupling = None