diff --git a/custom_components/kocom_smart_home/climate.py b/custom_components/kocom_smart_home/climate.py
index 1170f68..3fa434e 100644
--- a/custom_components/kocom_smart_home/climate.py
+++ b/custom_components/kocom_smart_home/climate.py
@@ -19,7 +19,9 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     for coordinator in coordinators:
         devices = await coordinator.get_devices()
         entities_to_add.extend(
-            KocomClimate(coordinator, device) for device in devices
+            KocomClimate(coordinator, device)
+            for device in devices
+            if device["device_id"] not in hass.data[DOMAIN]
         )
     
     if entities_to_add:
diff --git a/custom_components/kocom_smart_home/const.py b/custom_components/kocom_smart_home/const.py
index 3dd220a..f1ec0fe 100644
--- a/custom_components/kocom_smart_home/const.py
+++ b/custom_components/kocom_smart_home/const.py
@@ -8,7 +8,7 @@
 
 NAME = "Kocom Smart Home"
 DOMAIN = "kocom_smart_home"
-VERSION = "1.1.5"
+VERSION = "1.1.7"
 
 TIMEOUT_SEC = 10
 
diff --git a/custom_components/kocom_smart_home/coordinator.py b/custom_components/kocom_smart_home/coordinator.py
index daaa433..03426a0 100644
--- a/custom_components/kocom_smart_home/coordinator.py
+++ b/custom_components/kocom_smart_home/coordinator.py
@@ -185,7 +185,7 @@ async def get_devices(self) -> list:
         elif self.name in ["gas", "vent", "totalcontrol"]:
             single_device = await self.get_single_device()
             entry_device_info = {
-                "device_id": f"{self.name}_{single_device['data']['attr']['id'].lower()}",
+                "device_id": f"{single_device['data']['attr']['id'].lower()}_00",
                 "device_name": {"gas": "가스", "vent": "환기", "totalcontrol": "일괄소등"}[self.name],
                 "device_room": "00",
                 "device_type": single_device["data"]["attr"]["type"],
diff --git a/custom_components/kocom_smart_home/fan.py b/custom_components/kocom_smart_home/fan.py
index 3b5c4e1..18cad98 100644
--- a/custom_components/kocom_smart_home/fan.py
+++ b/custom_components/kocom_smart_home/fan.py
@@ -24,7 +24,9 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     devices = await coordinator.get_devices()
 
     entities_to_add: list = [
-        KocomFan(coordinator, devices[0])
+        KocomFan(coordinator, device)
+        for device in devices
+        if device["device_id"] not in hass.data[DOMAIN]
     ]
     
     if entities_to_add:
@@ -63,6 +65,8 @@ def supported_features(self) -> int:
     def percentage(self) -> Optional[int]:
         """Return the current speed percentage."""
         status = self.coordinator.get_device_status(function="wind")
+        if status == "0":
+            return 0
         return ordered_list_item_to_percentage(SPEED_LIST, status)
     
     @property
diff --git a/custom_components/kocom_smart_home/light.py b/custom_components/kocom_smart_home/light.py
index 746dec4..a24b65a 100644
--- a/custom_components/kocom_smart_home/light.py
+++ b/custom_components/kocom_smart_home/light.py
@@ -17,7 +17,9 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     for coordinator in coordinators:
         devices = await coordinator.get_devices()
         entities_to_add.extend(
-            KocomLight(coordinator, device) for device in devices
+            KocomLight(coordinator, device)
+            for device in devices
+            if device["device_id"] not in hass.data[DOMAIN]
         )
     
     if entities_to_add:
diff --git a/custom_components/kocom_smart_home/manifest.json b/custom_components/kocom_smart_home/manifest.json
index 7a3f40e..4721553 100644
--- a/custom_components/kocom_smart_home/manifest.json
+++ b/custom_components/kocom_smart_home/manifest.json
@@ -7,5 +7,5 @@
   ],
   "config_flow": true,
   "iot_class": "cloud_polling",
-  "version": "1.1.5"
+  "version": "1.1.7"
 }
diff --git a/custom_components/kocom_smart_home/sensor.py b/custom_components/kocom_smart_home/sensor.py
index da28c4b..f183388 100644
--- a/custom_components/kocom_smart_home/sensor.py
+++ b/custom_components/kocom_smart_home/sensor.py
@@ -16,7 +16,9 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     for coordinator in coordinators:
         devices = await coordinator.get_devices()
         entities_to_add.extend(
-            KocomSensor(coordinator, device) for device in devices
+            KocomSensor(coordinator, device)
+            for device in devices
+            if device["device_id"] not in hass.data[DOMAIN]
         )
     
     if entities_to_add:
diff --git a/custom_components/kocom_smart_home/switch.py b/custom_components/kocom_smart_home/switch.py
index 0719508..aa4eed9 100644
--- a/custom_components/kocom_smart_home/switch.py
+++ b/custom_components/kocom_smart_home/switch.py
@@ -17,7 +17,9 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     for coordinator in coordinators:
         devices = await coordinator.get_devices()
         entities_to_add.extend(
-            KocomSwitch(coordinator, device) for device in devices
+            KocomSwitch(coordinator, device)
+            for device in devices
+            if device["device_id"] not in hass.data[DOMAIN]
         )
     
     if entities_to_add:
diff --git a/release_notes.md b/release_notes.md
index c4093d0..072c67b 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -1,3 +1,13 @@
+### V1.1.7
+- 환기 오류 수정
+- 중복 엔티티 등록 체크
+
+### V1.1.6
+- ...
+
+### V1.1.5
+- ...
+
 ### V1.1.4
 - Climate 경고 로그 해결