diff --git a/custom_components/luxtronik/const.py b/custom_components/luxtronik/const.py
index 65f7600..19dc78d 100644
--- a/custom_components/luxtronik/const.py
+++ b/custom_components/luxtronik/const.py
@@ -93,6 +93,7 @@ class FirmwareVersionMinor(Enum):
 
     minor_80: Final = 80
     minor_88: Final = 88
+    minor_90: Final = 90
 
 
 LUXTRONIK_HA_SIGNAL_UPDATE_ENTITY = "luxtronik_entry_update"
diff --git a/custom_components/luxtronik/sensor_entities_predefined.py b/custom_components/luxtronik/sensor_entities_predefined.py
index 9b61067..0bf2d39 100644
--- a/custom_components/luxtronik/sensor_entities_predefined.py
+++ b/custom_components/luxtronik/sensor_entities_predefined.py
@@ -468,7 +468,7 @@
         native_unit_of_measurement=UnitOfPower.WATT,
         entity_registry_enabled_default=False,
         native_precision=0,
-        min_firmware_version_minor=FirmwareVersionMinor.minor_88,
+        min_firmware_version_minor=FirmwareVersionMinor.minor_90,
     ),
     # endregion Main heatpump
     # region Heating