diff --git a/custom_components/multimatic/binary_sensor.py b/custom_components/multimatic/binary_sensor.py
index a773344..b1c9810 100644
--- a/custom_components/multimatic/binary_sensor.py
+++ b/custom_components/multimatic/binary_sensor.py
@@ -6,12 +6,8 @@
 from pymultimatic.model import Device, OperatingModes, QuickModes, Room, SettingModes
 
 from homeassistant.components.binary_sensor import (
-    DEVICE_CLASS_BATTERY,
-    DEVICE_CLASS_CONNECTIVITY,
-    DEVICE_CLASS_LOCK,
-    DEVICE_CLASS_PROBLEM,
-    DEVICE_CLASS_WINDOW,
     DOMAIN,
+    BinarySensorDeviceClass,
     BinarySensorEntity,
 )
 from homeassistant.const import ENTITY_CATEGORY_DIAGNOSTIC
@@ -124,7 +120,9 @@ class RoomWindow(MultimaticEntity, BinarySensorEntity):
 
     def __init__(self, coordinator: MultimaticCoordinator, room: Room) -> None:
         """Initialize entity."""
-        super().__init__(coordinator, DOMAIN, f"{room.name}_{DEVICE_CLASS_WINDOW}")
+        super().__init__(
+            coordinator, DOMAIN, f"{room.name}_{BinarySensorDeviceClass.WINDOW}"
+        )
         self._room_id = room.id
 
     @property
@@ -140,7 +138,7 @@ def available(self):
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_WINDOW
+        return BinarySensorDeviceClass.WINDOW
 
     @property
     def name(self) -> str:
@@ -182,7 +180,7 @@ def device_info(self):
         }
 
     @property
-    def device_state_attributes(self):
+    def extra_state_attributes(self):
         """Return the state attributes."""
         device = self.device
         return {
@@ -222,7 +220,7 @@ def __init__(
         self, coordinator: MultimaticCoordinator, device: Device, room: Room
     ) -> None:
         """Initialize entity."""
-        super().__init__(coordinator, device, DEVICE_CLASS_LOCK)
+        super().__init__(coordinator, device, BinarySensorDeviceClass.LOCK)
         self._room_id = room.id
 
     @property
@@ -243,7 +241,7 @@ def room(self) -> Room:
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_LOCK
+        return BinarySensorDeviceClass.LOCK
 
     @property
     def entity_category(self) -> str | None:
@@ -256,7 +254,7 @@ class RoomDeviceBattery(RoomDeviceEntity):
 
     def __init__(self, coordinator: MultimaticCoordinator, device: Device) -> None:
         """Initialize entity."""
-        super().__init__(coordinator, device, DEVICE_CLASS_BATTERY)
+        super().__init__(coordinator, device, BinarySensorDeviceClass.BATTERY)
 
     @property
     def is_on(self):
@@ -266,7 +264,7 @@ def is_on(self):
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_BATTERY
+        return BinarySensorDeviceClass.BATTERY
 
     @property
     def entity_category(self) -> str | None:
@@ -279,7 +277,7 @@ class RoomDeviceConnectivity(RoomDeviceEntity):
 
     def __init__(self, coordinator: MultimaticCoordinator, device: Device) -> None:
         """Initialize entity."""
-        super().__init__(coordinator, device, DEVICE_CLASS_CONNECTIVITY)
+        super().__init__(coordinator, device, BinarySensorDeviceClass.CONNECTIVITY)
 
     @property
     def is_on(self):
@@ -289,7 +287,7 @@ def is_on(self):
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_CONNECTIVITY
+        return BinarySensorDeviceClass.CONNECTIVITY
 
     @property
     def entity_category(self) -> str | None:
@@ -385,7 +383,7 @@ def name(self):
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_CONNECTIVITY
+        return BinarySensorDeviceClass.CONNECTIVITY
 
     @property
     def entity_category(self) -> str | None:
@@ -433,7 +431,7 @@ def device_info(self):
         }
 
     @property
-    def device_state_attributes(self):
+    def extra_state_attributes(self):
         """Return the state attributes."""
         if self.available:
             return {"device_id": self._boiler_id, "error": self.boiler_status.is_error}
@@ -457,7 +455,7 @@ def boiler_status(self):
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_PROBLEM
+        return BinarySensorDeviceClass.PROBLEM
 
     @property
     def entity_category(self) -> str | None:
@@ -479,7 +477,10 @@ def __init__(self, coordinator: MultimaticCoordinator) -> None:
     @property
     def is_on(self):
         """Return true if the binary sensor is on."""
-        return self.coordinator.data.errors and len(self.coordinator.data.errors) > 0
+        if self.coordinator.data.errors:
+            return len(self.coordinator.data.errors) > 0
+        else:
+            return False
 
     @property
     def state_attributes(self):
@@ -503,7 +504,7 @@ def state_attributes(self):
     @property
     def device_class(self):
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_PROBLEM
+        return BinarySensorDeviceClass.PROBLEM
 
     @property
     def name(self):
@@ -564,7 +565,7 @@ def __init__(self, coordinator: MultimaticCoordinator) -> None:
     @property
     def is_on(self):
         """Return true if the binary sensor is on."""
-        return self.coordinator.data
+        return False if self.coordinator.data is None else True
 
     @property
     def state_attributes(self):
diff --git a/custom_components/multimatic/coordinator.py b/custom_components/multimatic/coordinator.py
index da550be..8122ff3 100644
--- a/custom_components/multimatic/coordinator.py
+++ b/custom_components/multimatic/coordinator.py
@@ -390,13 +390,13 @@ async def set_fan_operating_mode(self, entity, mode: Mode):
             entity.component.operating_mode = mode
         await self._refresh(touch_system, entity)
 
-    async def set_fan_day_level(self, level):
+    async def set_fan_day_level(self, entity, level):
         """Set fan day level."""
-        await self._manager.set_ventilation_day_level(level)
+        await self._manager.set_ventilation_day_level(entity.component.id, level)
 
-    async def set_fan_night_level(self, level):
+    async def set_fan_night_level(self, entity, level):
         """Set fan night level."""
-        await self._manager.set_ventilation_night_level(level)
+        await self._manager.set_ventilation_night_level(entity.component.id, level)
 
     async def _remove_quick_mode_no_refresh(self, entity=None):
         removed = False
@@ -530,6 +530,7 @@ async def _first_fetch_data(self):
                     self.name,
                     exc_info=True,
                 )
+                return None
             else:
                 raise
 
diff --git a/custom_components/multimatic/fan.py b/custom_components/multimatic/fan.py
index 2612384..5d92291 100644
--- a/custom_components/multimatic/fan.py
+++ b/custom_components/multimatic/fan.py
@@ -10,7 +10,7 @@
 from homeassistant.components.fan import DOMAIN, SUPPORT_PRESET_MODE, FanEntity
 from homeassistant.helpers import entity_platform
 
-from .const import VENTILATION
+from .const import ATTR_LEVEL, VENTILATION
 from .coordinator import MultimaticCoordinator
 from .entities import MultimaticEntity
 from .service import (
@@ -136,3 +136,11 @@ def available(self):
     def active_mode(self):
         """Return the active mode."""
         return self.coordinator.api.get_active_mode(self.component)
+
+    async def set_ventilation_day_level(self, **kwargs):
+        """Service method to set day level."""
+        await self.coordinator.api.set_fan_day_level(self, kwargs.get(ATTR_LEVEL))
+
+    async def set_ventilation_night_level(self, **kwargs):
+        """Service method to set night level."""
+        await self.coordinator.api.set_fan_night_level(self, kwargs.get(ATTR_LEVEL))
diff --git a/custom_components/multimatic/manifest.json b/custom_components/multimatic/manifest.json
index f4df5a6..893e1d1 100644
--- a/custom_components/multimatic/manifest.json
+++ b/custom_components/multimatic/manifest.json
@@ -5,7 +5,7 @@
   "documentation": "https://github.com/thomasgermain/vaillant-component",
   "issue_tracker": "https://github.com/thomasgermain/vaillant-component/issues",
   "requirements": [
-    "pymultimatic==0.6.5"
+    "pymultimatic==0.6.6"
   ],
   "ssdp": [],
   "zeroconf": [],
@@ -14,6 +14,6 @@
   "codeowners": [
     "@thomasgermain"
   ],
-  "version": "1.11.0",
+  "version": "1.12.0",
   "iot_class": "cloud_polling"
 }
diff --git a/custom_components/multimatic/sensor.py b/custom_components/multimatic/sensor.py
index b114a78..7d298de 100644
--- a/custom_components/multimatic/sensor.py
+++ b/custom_components/multimatic/sensor.py
@@ -8,12 +8,10 @@
 from pymultimatic.model import EmfReport, Report
 
 from homeassistant.components.sensor import (
-    DEVICE_CLASS_ENERGY,
-    DEVICE_CLASS_PRESSURE,
-    DEVICE_CLASS_TEMPERATURE,
     DOMAIN,
     STATE_CLASS_MEASUREMENT,
     STATE_CLASS_TOTAL_INCREASING,
+    SensorDeviceClass,
     SensorEntity,
 )
 from homeassistant.const import (
@@ -32,9 +30,9 @@
 _LOGGER = logging.getLogger(__name__)
 
 UNIT_TO_DEVICE_CLASS = {
-    "bar": DEVICE_CLASS_PRESSURE,
+    "bar": SensorDeviceClass.PRESSURE,
     "ppm": "",
-    "°C": DEVICE_CLASS_TEMPERATURE,
+    "°C": SensorDeviceClass.TEMPERATURE,
 }
 
 
@@ -92,7 +90,7 @@ def name(self) -> str:
     @property
     def device_class(self) -> str:
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_TEMPERATURE
+        return SensorDeviceClass.TEMPERATURE
 
     @property
     def state_class(self) -> str | None:
@@ -226,7 +224,7 @@ def device_info(self):
     @property
     def device_class(self) -> str | None:
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return DEVICE_CLASS_ENERGY
+        return SensorDeviceClass.ENERGY
 
     @property
     def name(self) -> str | None:
diff --git a/custom_components/multimatic/service.py b/custom_components/multimatic/service.py
index 9b9efff..682fbbc 100644
--- a/custom_components/multimatic/service.py
+++ b/custom_components/multimatic/service.py
@@ -70,6 +70,7 @@
 
 SERVICE_SET_VENTILATION_DAY_LEVEL_SCHEMA = vol.Schema(
     {
+        vol.Required(ATTR_ENTITY_ID): vol.All(vol.Coerce(str)),
         vol.Required(ATTR_LEVEL): vol.All(vol.Coerce(int), vol.Clamp(min=1, max=6)),
     }
 )
@@ -98,10 +99,12 @@
         "schema": SERVICE_REQUEST_HVAC_UPDATE_SCHEMA,
     },
     SERVICE_SET_VENTILATION_NIGHT_LEVEL: {
-        "schema": SERVICE_SET_VENTILATION_NIGHT_LEVEL_SCHEMA
+        "schema": SERVICE_SET_VENTILATION_NIGHT_LEVEL_SCHEMA,
+        "entity": True,
     },
     SERVICE_SET_VENTILATION_DAY_LEVEL: {
-        "schema": SERVICE_SET_VENTILATION_DAY_LEVEL_SCHEMA
+        "schema": SERVICE_SET_VENTILATION_DAY_LEVEL_SCHEMA,
+        "entity": True,
     },
 }
 
@@ -148,11 +151,3 @@ async def set_quick_mode(self, data):
     async def request_hvac_update(self, data):
         """Ask multimatic API to get data from the installation."""
         await self.api.request_hvac_update()
-
-    async def set_ventilation_day_level(self, data):
-        """Set ventilation day level."""
-        await self.api.set_fan_day_level(data.get(ATTR_LEVEL))
-
-    async def set_ventilation_night_level(self, data):
-        """Set ventilation day level."""
-        await self.api.set_fan_night_level(data.get(ATTR_LEVEL))
diff --git a/custom_components/multimatic/services.yaml b/custom_components/multimatic/services.yaml
index 1b3c870..340f7e1 100644
--- a/custom_components/multimatic/services.yaml
+++ b/custom_components/multimatic/services.yaml
@@ -49,3 +49,23 @@ remove_quick_veto:
 
 request_hvac_update:
   description: Ask multimatic API to get data from your installation.
+
+set_ventilation_day_level:
+  description: Set day level ventilation
+  fields:
+    entity_id:
+      description: Entity id of the fan
+      example: fan.bathroom
+    level:
+      description: Level to set (required)
+      example: 1
+
+set_ventilation_night_level:
+  description: Set night level ventilation
+  fields:
+    entity_id:
+      description: Entity id of the fan
+      example: fan.bathroom
+    level:
+      description: Level to set (required)
+      example: 2
diff --git a/hacs.json b/hacs.json
index 103a204..d2df0c7 100644
--- a/hacs.json
+++ b/hacs.json
@@ -2,5 +2,5 @@
   "name": "multimatic",
   "domains": ["binary_sensor", "climate", "fan", "sensor", "water_heater"],
   "render_readme": true,
-  "homeassistant": "2021.11.0"
+  "homeassistant": "2021.12.0"
 }