diff --git a/datatypes/epc/domain/tests/test_from_site_notes.py b/datatypes/epc/domain/tests/test_from_site_notes.py
index e23d71f57..7aad4e162 100644
--- a/datatypes/epc/domain/tests/test_from_site_notes.py
+++ b/datatypes/epc/domain/tests/test_from_site_notes.py
@@ -170,6 +170,13 @@ class TestFromSiteNotesExample1:
             result.sap_heating.main_heating_details[0].heat_emitter_type == "Radiators"
         )
 
+    def test_main_heating_control(self, result: EpcPropertyData) -> None:
+        # heating_and_hot_water.main_heating.controls:
+        # "Programmer, room thermostat and TRVs" is resolved at the mapper
+        # boundary to its SAP 10.2 Table 4e code (2106), not the raw label —
+        # the calculator's `_control_type` keys off the int code.
+        assert result.sap_heating.main_heating_details[0].main_heating_control == 2106
+
     def test_main_heating_no_fghrs(self, result: EpcPropertyData) -> None:
         # heating_and_hot_water.main_heating.flue_gas_heat_recovery_system: false
         assert result.sap_heating.main_heating_details[0].has_fghrs is False
@@ -383,7 +390,7 @@ class TestFromSiteNotesExample1:
                         heat_emitter_type="Radiators",
                         emitter_temperature="Unknown",
                         fan_flue_present=True,
-                        main_heating_control="Programmer, room thermostat and TRVs",
+                        main_heating_control=2106,
                         condensing=True,
                         weather_compensator=False,
                         central_heating_pump_age_str="Unknown",