diff --git a/homeassistant/components/dwd_weather_warnings/__init__.py b/homeassistant/components/dwd_weather_warnings/__init__.py
index f71b81d862b..7a56299a35b 100644
--- a/homeassistant/components/dwd_weather_warnings/__init__.py
+++ b/homeassistant/components/dwd_weather_warnings/__init__.py
@@ -3,8 +3,9 @@
 from __future__ import annotations
 
 from homeassistant.core import HomeAssistant
+from homeassistant.helpers import device_registry as dr
 
-from .const import PLATFORMS
+from .const import DOMAIN, PLATFORMS
 from .coordinator import DwdWeatherWarningsConfigEntry, DwdWeatherWarningsCoordinator
 
 
@@ -12,6 +13,9 @@ async def async_setup_entry(
     hass: HomeAssistant, entry: DwdWeatherWarningsConfigEntry
 ) -> bool:
     """Set up a config entry."""
+    device_registry = dr.async_get(hass)
+    if device_registry.async_get_device(identifiers={(DOMAIN, entry.entry_id)}):
+        device_registry.async_clear_config_entry(entry.entry_id)
     coordinator = DwdWeatherWarningsCoordinator(hass)
     await coordinator.async_config_entry_first_refresh()
 
diff --git a/homeassistant/components/dwd_weather_warnings/sensor.py b/homeassistant/components/dwd_weather_warnings/sensor.py
index 4f1b64a5b44..c6aa5727b74 100644
--- a/homeassistant/components/dwd_weather_warnings/sensor.py
+++ b/homeassistant/components/dwd_weather_warnings/sensor.py
@@ -36,7 +36,6 @@ from .const import (
     ATTR_REGION_NAME,
     ATTR_WARNING_COUNT,
     CURRENT_WARNING_SENSOR,
-    DEFAULT_NAME,
     DOMAIN,
 )
 from .coordinator import DwdWeatherWarningsConfigEntry, DwdWeatherWarningsCoordinator
@@ -61,12 +60,12 @@ async def async_setup_entry(
     """Set up entities from config entry."""
     coordinator = entry.runtime_data
 
+    unique_id = entry.unique_id
+    assert unique_id
+
     async_add_entities(
-        [
-            DwdWeatherWarningsSensor(coordinator, entry, description)
-            for description in SENSOR_TYPES
-        ],
-        True,
+        DwdWeatherWarningsSensor(coordinator, description, unique_id)
+        for description in SENSOR_TYPES
     )
 
 
@@ -81,18 +80,18 @@ class DwdWeatherWarningsSensor(
     def __init__(
         self,
         coordinator: DwdWeatherWarningsCoordinator,
-        entry: DwdWeatherWarningsConfigEntry,
         description: SensorEntityDescription,
+        unique_id: str,
     ) -> None:
         """Initialize a DWD-Weather-Warnings sensor."""
         super().__init__(coordinator)
 
         self.entity_description = description
-        self._attr_unique_id = f"{entry.unique_id}-{description.key}"
+        self._attr_unique_id = f"{unique_id}-{description.key}"
 
         self._attr_device_info = DeviceInfo(
-            identifiers={(DOMAIN, entry.entry_id)},
-            name=f"{DEFAULT_NAME} {entry.title}",
+            identifiers={(DOMAIN, unique_id)},
+            name=coordinator.api.warncell_name,
             entry_type=DeviceEntryType.SERVICE,
         )
 
diff --git a/tests/components/dwd_weather_warnings/test_init.py b/tests/components/dwd_weather_warnings/test_init.py
index e5b82d0c453..54f57ead77c 100644
--- a/tests/components/dwd_weather_warnings/test_init.py
+++ b/tests/components/dwd_weather_warnings/test_init.py
@@ -12,7 +12,8 @@ from homeassistant.components.dwd_weather_warnings.coordinator import (
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.const import ATTR_LATITUDE, ATTR_LONGITUDE, STATE_HOME
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers import entity_registry as er
+from homeassistant.helpers import device_registry as dr, entity_registry as er
+from homeassistant.helpers.device_registry import DeviceEntryType
 
 from . import init_integration
 
@@ -36,6 +37,41 @@ async def test_load_unload_entry(
     assert entry.state is ConfigEntryState.NOT_LOADED
 
 
+async def test_removing_old_device(
+    hass: HomeAssistant,
+    mock_identifier_entry: MockConfigEntry,
+    mock_dwdwfsapi: MagicMock,
+    device_registry: dr.DeviceRegistry,
+) -> None:
+    """Test removing old device when reloading the integration."""
+
+    mock_identifier_entry.add_to_hass(hass)
+
+    device_registry.async_get_or_create(
+        identifiers={(DOMAIN, mock_identifier_entry.entry_id)},
+        config_entry_id=mock_identifier_entry.entry_id,
+        entry_type=DeviceEntryType.SERVICE,
+        name="test",
+    )
+
+    assert (
+        device_registry.async_get_device(
+            identifiers={(DOMAIN, mock_identifier_entry.entry_id)}
+        )
+        is not None
+    )
+
+    await hass.config_entries.async_setup(mock_identifier_entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert (
+        device_registry.async_get_device(
+            identifiers={(DOMAIN, mock_identifier_entry.entry_id)}
+        )
+        is None
+    )
+
+
 async def test_load_invalid_registry_entry(
     hass: HomeAssistant, mock_tracker_entry: MockConfigEntry
 ) -> None: