diff --git a/homeassistant/components/generic_thermostat/climate.py b/homeassistant/components/generic_thermostat/climate.py
index f82da4483eb..dd6829eacce 100644
--- a/homeassistant/components/generic_thermostat/climate.py
+++ b/homeassistant/components/generic_thermostat/climate.py
@@ -205,7 +205,6 @@ class GenericThermostat(ClimateEntity, RestoreEntity):
     """Representation of a Generic Thermostat device."""
 
     _attr_should_poll = False
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/geniushub/climate.py b/homeassistant/components/geniushub/climate.py
index 99d1bde8099..e20d649541e 100644
--- a/homeassistant/components/geniushub/climate.py
+++ b/homeassistant/components/geniushub/climate.py
@@ -51,7 +51,6 @@ class GeniusClimateZone(GeniusHeatingZone, ClimateEntity):
         | ClimateEntityFeature.TURN_OFF
         | ClimateEntityFeature.TURN_ON
     )
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, broker, zone) -> None:
         """Initialize the climate device."""
diff --git a/homeassistant/components/gree/climate.py b/homeassistant/components/gree/climate.py
index 6a8f48780c8..f197f21a4e1 100644
--- a/homeassistant/components/gree/climate.py
+++ b/homeassistant/components/gree/climate.py
@@ -126,7 +126,6 @@ class GreeClimateEntity(GreeEntity, ClimateEntity):
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_min_temp = TEMP_MIN
     _attr_max_temp = TEMP_MAX
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, coordinator: DeviceDataUpdateCoordinator) -> None:
         """Initialize the Gree device."""
diff --git a/homeassistant/components/heatmiser/climate.py b/homeassistant/components/heatmiser/climate.py
index 1102dbc0c74..de66315a467 100644
--- a/homeassistant/components/heatmiser/climate.py
+++ b/homeassistant/components/heatmiser/climate.py
@@ -82,7 +82,6 @@ class HeatmiserV3Thermostat(ClimateEntity):
         | ClimateEntityFeature.TURN_OFF
         | ClimateEntityFeature.TURN_ON
     )
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, therm, device, uh1):
         """Initialize the thermostat."""
diff --git a/homeassistant/components/hisense_aehw4a1/climate.py b/homeassistant/components/hisense_aehw4a1/climate.py
index 656ba6c68c0..68f79439162 100644
--- a/homeassistant/components/hisense_aehw4a1/climate.py
+++ b/homeassistant/components/hisense_aehw4a1/climate.py
@@ -155,7 +155,6 @@ class ClimateAehW4a1(ClimateEntity):
     _attr_target_temperature_step = 1
     _previous_state: HVACMode | str | None = None
     _on: str | None = None
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, device):
         """Initialize the climate device."""
diff --git a/homeassistant/components/hive/climate.py b/homeassistant/components/hive/climate.py
index 4e5ea95f2fa..c76379cf940 100644
--- a/homeassistant/components/hive/climate.py
+++ b/homeassistant/components/hive/climate.py
@@ -100,7 +100,6 @@ class HiveClimateEntity(HiveEntity, ClimateEntity):
         | ClimateEntityFeature.TURN_OFF
         | ClimateEntityFeature.TURN_ON
     )
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, hive: Hive, hive_device: dict[str, Any]) -> None:
         """Initialize the Climate device."""
diff --git a/homeassistant/components/homekit_controller/climate.py b/homeassistant/components/homekit_controller/climate.py
index 4e55c8212be..ba5237e6e2d 100644
--- a/homeassistant/components/homekit_controller/climate.py
+++ b/homeassistant/components/homekit_controller/climate.py
@@ -136,7 +136,6 @@ class HomeKitBaseClimateEntity(HomeKitEntity, ClimateEntity):
     """The base HomeKit Controller climate entity."""
 
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     @callback
     def _async_reconfigure(self) -> None:
diff --git a/homeassistant/components/homematic/climate.py b/homeassistant/components/homematic/climate.py
index 2be28487cbb..6e16e16ba99 100644
--- a/homeassistant/components/homematic/climate.py
+++ b/homeassistant/components/homematic/climate.py
@@ -63,7 +63,6 @@ class HMThermostat(HMDevice, ClimateEntity):
         | ClimateEntityFeature.TURN_ON
     )
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     @property
     def hvac_mode(self) -> HVACMode:
diff --git a/homeassistant/components/homematicip_cloud/climate.py b/homeassistant/components/homematicip_cloud/climate.py
index f6a69f50770..e7132fac83c 100644
--- a/homeassistant/components/homematicip_cloud/climate.py
+++ b/homeassistant/components/homematicip_cloud/climate.py
@@ -81,7 +81,6 @@ class HomematicipHeatingGroup(HomematicipGenericEntity, ClimateEntity):
         ClimateEntityFeature.PRESET_MODE | ClimateEntityFeature.TARGET_TEMPERATURE
     )
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, hap: HomematicipHAP, device: AsyncHeatingGroup) -> None:
         """Initialize heating group."""
diff --git a/homeassistant/components/honeywell/climate.py b/homeassistant/components/honeywell/climate.py
index 9f6b7682470..7398ada23be 100644
--- a/homeassistant/components/honeywell/climate.py
+++ b/homeassistant/components/honeywell/climate.py
@@ -165,7 +165,6 @@ class HoneywellUSThermostat(ClimateEntity):
     _attr_has_entity_name = True
     _attr_name = None
     _attr_translation_key = "honeywell"
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/huum/climate.py b/homeassistant/components/huum/climate.py
index df740aea3d1..7e0e4ce5ef1 100644
--- a/homeassistant/components/huum/climate.py
+++ b/homeassistant/components/huum/climate.py
@@ -56,7 +56,6 @@ class HuumDevice(ClimateEntity):
 
     _target_temperature: int | None = None
     _status: HuumStatusResponse | None = None
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, huum_handler: Huum, unique_id: str) -> None:
         """Initialize the heater."""
diff --git a/homeassistant/components/iaqualink/climate.py b/homeassistant/components/iaqualink/climate.py
index 78da1eff071..53d1bce80de 100644
--- a/homeassistant/components/iaqualink/climate.py
+++ b/homeassistant/components/iaqualink/climate.py
@@ -54,7 +54,6 @@ class HassAqualinkThermostat(AqualinkEntity, ClimateEntity):
         | ClimateEntityFeature.TURN_OFF
         | ClimateEntityFeature.TURN_ON
     )
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, dev: AqualinkThermostat) -> None:
         """Initialize AquaLink thermostat."""
diff --git a/homeassistant/components/incomfort/climate.py b/homeassistant/components/incomfort/climate.py
index eccf03588dc..41470180051 100644
--- a/homeassistant/components/incomfort/climate.py
+++ b/homeassistant/components/incomfort/climate.py
@@ -46,7 +46,6 @@ class InComfortClimate(IncomfortEntity, ClimateEntity):
     _attr_hvac_modes = [HVACMode.HEAT]
     _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/insteon/climate.py b/homeassistant/components/insteon/climate.py
index 3db8edbf1c9..506841e7efb 100644
--- a/homeassistant/components/insteon/climate.py
+++ b/homeassistant/components/insteon/climate.py
@@ -94,7 +94,6 @@ class InsteonClimateEntity(InsteonEntity, ClimateEntity):
     _attr_hvac_modes = list(HVAC_MODES.values())
     _attr_fan_modes = list(FAN_MODES.values())
     _attr_min_humidity = 1
-    _enable_turn_on_off_backwards_compatibility = False
 
     @property
     def temperature_unit(self) -> str:
diff --git a/homeassistant/components/intellifire/climate.py b/homeassistant/components/intellifire/climate.py
index 4eddde5ff10..f72df254424 100644
--- a/homeassistant/components/intellifire/climate.py
+++ b/homeassistant/components/intellifire/climate.py
@@ -58,7 +58,6 @@ class IntellifireClimate(IntellifireEntity, ClimateEntity):
     _attr_target_temperature_step = 1.0
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     last_temp = DEFAULT_THERMOSTAT_TEMP
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/intesishome/climate.py b/homeassistant/components/intesishome/climate.py
index 82b653a34c7..1a1f58a6b80 100644
--- a/homeassistant/components/intesishome/climate.py
+++ b/homeassistant/components/intesishome/climate.py
@@ -147,7 +147,6 @@ class IntesisAC(ClimateEntity):
 
     _attr_should_poll = False
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, ih_device_id, ih_device, controller):
         """Initialize the thermostat."""
diff --git a/homeassistant/components/isy994/climate.py b/homeassistant/components/isy994/climate.py
index d4376b5a3b4..d5deba56284 100644
--- a/homeassistant/components/isy994/climate.py
+++ b/homeassistant/components/isy994/climate.py
@@ -88,7 +88,6 @@ class ISYThermostatEntity(ISYNodeEntity, ClimateEntity):
     )
     _attr_target_temperature_step = 1.0
     _attr_fan_modes = [FAN_AUTO, FAN_ON]
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, node: Node, device_info: DeviceInfo | None = None) -> None:
         """Initialize the ISY Thermostat entity."""
diff --git a/homeassistant/components/izone/climate.py b/homeassistant/components/izone/climate.py
index 2a602939250..e61917c825b 100644
--- a/homeassistant/components/izone/climate.py
+++ b/homeassistant/components/izone/climate.py
@@ -141,7 +141,6 @@ class ControllerDevice(ClimateEntity):
     _attr_has_entity_name = True
     _attr_name = None
     _attr_target_temperature_step = 0.5
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, controller: Controller) -> None:
         """Initialise ControllerDevice."""
diff --git a/homeassistant/components/knx/climate.py b/homeassistant/components/knx/climate.py
index 0e0da4d5c0c..af58dd6ef4d 100644
--- a/homeassistant/components/knx/climate.py
+++ b/homeassistant/components/knx/climate.py
@@ -148,7 +148,6 @@ class KNXClimate(KnxYamlEntity, ClimateEntity):
     _device: XknxClimate
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_translation_key = "knx_climate"
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, knx_module: KNXModule, config: ConfigType) -> None:
         """Initialize of a KNX climate device."""
diff --git a/homeassistant/components/lcn/climate.py b/homeassistant/components/lcn/climate.py
index 1c7472bc4e3..360b732c02e 100644
--- a/homeassistant/components/lcn/climate.py
+++ b/homeassistant/components/lcn/climate.py
@@ -81,8 +81,6 @@ async def async_setup_entry(
 class LcnClimate(LcnEntity, ClimateEntity):
     """Representation of a LCN climate device."""
 
-    _enable_turn_on_off_backwards_compatibility = False
-
     def __init__(self, config: ConfigType, config_entry: ConfigEntry) -> None:
         """Initialize of a LCN climate device."""
         super().__init__(config, config_entry)
diff --git a/homeassistant/components/lightwave/climate.py b/homeassistant/components/lightwave/climate.py
index 1016e8ce80d..942fb4a1fbc 100644
--- a/homeassistant/components/lightwave/climate.py
+++ b/homeassistant/components/lightwave/climate.py
@@ -55,7 +55,6 @@ class LightwaveTrv(ClimateEntity):
     )
     _attr_target_temperature_step = 0.5
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, name, device_id, lwlink, serial):
         """Initialize LightwaveTrv entity."""
diff --git a/homeassistant/components/livisi/climate.py b/homeassistant/components/livisi/climate.py
index 5d70936fc53..3ecdcb486c0 100644
--- a/homeassistant/components/livisi/climate.py
+++ b/homeassistant/components/livisi/climate.py
@@ -68,7 +68,6 @@ class LivisiClimate(LivisiEntity, ClimateEntity):
     _attr_hvac_mode = HVACMode.HEAT
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/lookin/climate.py b/homeassistant/components/lookin/climate.py
index fadeb6d16fa..051a18c9a32 100644
--- a/homeassistant/components/lookin/climate.py
+++ b/homeassistant/components/lookin/climate.py
@@ -107,7 +107,6 @@ class ConditionerEntity(LookinCoordinatorEntity, ClimateEntity):
     _attr_min_temp = MIN_TEMP
     _attr_max_temp = MAX_TEMP
     _attr_target_temperature_step = PRECISION_WHOLE
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/lyric/climate.py b/homeassistant/components/lyric/climate.py
index bf8e17527e8..87b5d566bb8 100644
--- a/homeassistant/components/lyric/climate.py
+++ b/homeassistant/components/lyric/climate.py
@@ -174,7 +174,6 @@ class LyricClimate(LyricDeviceEntity, ClimateEntity):
         PRESET_TEMPORARY_HOLD,
         PRESET_VACATION_HOLD,
     ]
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/matter/climate.py b/homeassistant/components/matter/climate.py
index cdbe1e36245..0378d0ea226 100644
--- a/homeassistant/components/matter/climate.py
+++ b/homeassistant/components/matter/climate.py
@@ -187,7 +187,7 @@ class MatterClimate(MatterEntity, ClimateEntity):
     _attr_temperature_unit: str = UnitOfTemperature.CELSIUS
     _attr_hvac_mode: HVACMode = HVACMode.OFF
     _feature_map: int | None = None
-    _enable_turn_on_off_backwards_compatibility = False
+
     _platform_translation_key = "thermostat"
 
     async def async_set_temperature(self, **kwargs: Any) -> None:
diff --git a/homeassistant/components/maxcube/climate.py b/homeassistant/components/maxcube/climate.py
index b14efbbe073..da5a9f34dda 100644
--- a/homeassistant/components/maxcube/climate.py
+++ b/homeassistant/components/maxcube/climate.py
@@ -73,7 +73,6 @@ class MaxCubeClimate(ClimateEntity):
         | ClimateEntityFeature.TURN_OFF
         | ClimateEntityFeature.TURN_ON
     )
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, handler, device):
         """Initialize MAX! Cube ClimateEntity."""
diff --git a/homeassistant/components/melcloud/climate.py b/homeassistant/components/melcloud/climate.py
index 08b3658c270..4defd47bc39 100644
--- a/homeassistant/components/melcloud/climate.py
+++ b/homeassistant/components/melcloud/climate.py
@@ -115,7 +115,6 @@ class MelCloudClimate(ClimateEntity):
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_has_entity_name = True
     _attr_name = None
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, device: MelCloudDevice) -> None:
         """Initialize the climate."""
diff --git a/homeassistant/components/melissa/climate.py b/homeassistant/components/melissa/climate.py
index 0ad663faa2a..ff68820d70f 100644
--- a/homeassistant/components/melissa/climate.py
+++ b/homeassistant/components/melissa/climate.py
@@ -65,7 +65,6 @@ class MelissaClimate(ClimateEntity):
         | ClimateEntityFeature.TURN_ON
     )
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, api, serial_number, init_data):
         """Initialize the climate device."""
diff --git a/homeassistant/components/mill/climate.py b/homeassistant/components/mill/climate.py
index 5c5c7882634..4f700d24e1b 100644
--- a/homeassistant/components/mill/climate.py
+++ b/homeassistant/components/mill/climate.py
@@ -100,7 +100,6 @@ class MillHeater(CoordinatorEntity[MillDataUpdateCoordinator], ClimateEntity):
     )
     _attr_target_temperature_step = PRECISION_TENTHS
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self, coordinator: MillDataUpdateCoordinator, heater: mill.Heater
@@ -194,7 +193,6 @@ class LocalMillHeater(CoordinatorEntity[MillDataUpdateCoordinator], ClimateEntit
     )
     _attr_target_temperature_step = PRECISION_TENTHS
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, coordinator: MillDataUpdateCoordinator) -> None:
         """Initialize the thermostat."""
diff --git a/homeassistant/components/modbus/climate.py b/homeassistant/components/modbus/climate.py
index bcbaa0f32af..111c0458ef4 100644
--- a/homeassistant/components/modbus/climate.py
+++ b/homeassistant/components/modbus/climate.py
@@ -130,7 +130,6 @@ class ModbusThermostat(BaseStructPlatform, RestoreEntity, ClimateEntity):
         | ClimateEntityFeature.TURN_OFF
         | ClimateEntityFeature.TURN_ON
     )
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(
         self,
diff --git a/homeassistant/components/moehlenhoff_alpha2/climate.py b/homeassistant/components/moehlenhoff_alpha2/climate.py
index 33f17271800..7c24dad4469 100644
--- a/homeassistant/components/moehlenhoff_alpha2/climate.py
+++ b/homeassistant/components/moehlenhoff_alpha2/climate.py
@@ -47,7 +47,6 @@ class Alpha2Climate(CoordinatorEntity[Alpha2BaseCoordinator], ClimateEntity):
     _attr_hvac_modes = [HVACMode.HEAT, HVACMode.COOL]
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_preset_modes = [PRESET_AUTO, PRESET_DAY, PRESET_NIGHT]
-    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, coordinator: Alpha2BaseCoordinator, heat_area_id: str) -> None:
         """Initialize Alpha2 ClimateEntity."""
diff --git a/homeassistant/components/mqtt/climate.py b/homeassistant/components/mqtt/climate.py
index 2419e3f32ac..e62303472ed 100644
--- a/homeassistant/components/mqtt/climate.py
+++ b/homeassistant/components/mqtt/climate.py
@@ -521,7 +521,6 @@ class MqttClimate(MqttTemperatureControlEntity, ClimateEntity):
     _attributes_extra_blocked = MQTT_CLIMATE_ATTRIBUTES_BLOCKED
     _attr_target_temperature_low: float | None = None
     _attr_target_temperature_high: float | None = None
-    _enable_turn_on_off_backwards_compatibility = False
 
     @staticmethod
     def config_schema() -> VolSchemaType:
diff --git a/homeassistant/components/mysensors/climate.py b/homeassistant/components/mysensors/climate.py
index ce15faa589c..23b7c47ebf3 100644
--- a/homeassistant/components/mysensors/climate.py
+++ b/homeassistant/components/mysensors/climate.py
@@ -72,7 +72,6 @@ class MySensorsHVAC(MySensorsChildEntity, ClimateEntity):
     """Representation of a MySensors HVAC."""
 
     _attr_hvac_modes = OPERATION_LIST
-    _enable_turn_on_off_backwards_compatibility = False
 
     @property
     def supported_features(self) -> ClimateEntityFeature: