diff --git a/tests/components/laundrify/conftest.py b/tests/components/laundrify/conftest.py
index c9ad1e528a5..75df96d30b0 100644
--- a/tests/components/laundrify/conftest.py
+++ b/tests/components/laundrify/conftest.py
@@ -33,7 +33,9 @@ def laundrify_sensor_fixture() -> LaundrifyDevice:
 
 @pytest.fixture(name="laundrify_config_entry")
 async def laundrify_setup_config_entry(
-    hass: HomeAssistant, access_token: str = VALID_ACCESS_TOKEN
+    hass: HomeAssistant,
+    laundrify_api_mock,
+    access_token: str = VALID_ACCESS_TOKEN,
 ) -> MockConfigEntry:
     """Create laundrify entry in Home Assistant."""
     entry = MockConfigEntry(
diff --git a/tests/components/laundrify/test_coordinator.py b/tests/components/laundrify/test_coordinator.py
index 64b486d1285..a8e460da506 100644
--- a/tests/components/laundrify/test_coordinator.py
+++ b/tests/components/laundrify/test_coordinator.py
@@ -3,26 +3,24 @@
 from datetime import timedelta
 
 from freezegun.api import FrozenDateTimeFactory
-from laundrify_aio import LaundrifyDevice, exceptions
+from laundrify_aio import exceptions
 
-from homeassistant.components.laundrify.const import DEFAULT_POLL_INTERVAL
+from homeassistant.components.laundrify.const import DEFAULT_POLL_INTERVAL, DOMAIN
+from homeassistant.components.sensor import SensorDeviceClass
 from homeassistant.const import STATE_UNAVAILABLE
-from homeassistant.core import HomeAssistant, State
-from homeassistant.util import slugify
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
 
 from tests.common import async_fire_time_changed
 
-
-def get_coord_entity(hass: HomeAssistant, mock_device: LaundrifyDevice) -> State:
-    """Get the coordinated energy sensor entity."""
-    device_slug = slugify(mock_device.name, separator="_")
-    return hass.states.get(f"sensor.{device_slug}_energy")
+# Device ID from fixtures/machines.json
+DEVICE_ID = "14"
 
 
 async def test_coordinator_update_success(
     hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
     laundrify_config_entry,
-    mock_device: LaundrifyDevice,
     freezer: FrozenDateTimeFactory,
 ) -> None:
     """Test the coordinator update is performed successfully."""
@@ -30,15 +28,19 @@ async def test_coordinator_update_success(
     async_fire_time_changed(hass)
     await hass.async_block_till_done()
 
-    coord_entity = get_coord_entity(hass, mock_device)
-    assert coord_entity.state != STATE_UNAVAILABLE
+    entity_id = entity_registry.async_get_entity_id(
+        "sensor", DOMAIN, f"{DEVICE_ID}_{SensorDeviceClass.ENERGY}"
+    )
+    state = hass.states.get(entity_id)
+    assert state is not None
+    assert state.state != STATE_UNAVAILABLE
 
 
 async def test_coordinator_update_unauthorized(
     hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
     laundrify_config_entry,
     laundrify_api_mock,
-    mock_device: LaundrifyDevice,
     freezer: FrozenDateTimeFactory,
 ) -> None:
     """Test the coordinator update fails if an UnauthorizedException is thrown."""
@@ -48,15 +50,19 @@ async def test_coordinator_update_unauthorized(
     async_fire_time_changed(hass)
     await hass.async_block_till_done()
 
-    coord_entity = get_coord_entity(hass, mock_device)
-    assert coord_entity.state == STATE_UNAVAILABLE
+    entity_id = entity_registry.async_get_entity_id(
+        "sensor", DOMAIN, f"{DEVICE_ID}_{SensorDeviceClass.ENERGY}"
+    )
+    state = hass.states.get(entity_id)
+    assert state is not None
+    assert state.state == STATE_UNAVAILABLE
 
 
 async def test_coordinator_update_connection_failed(
     hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
     laundrify_config_entry,
     laundrify_api_mock,
-    mock_device: LaundrifyDevice,
     freezer: FrozenDateTimeFactory,
 ) -> None:
     """Test the coordinator update fails if an ApiConnectionException is thrown."""
@@ -66,5 +72,9 @@ async def test_coordinator_update_connection_failed(
     async_fire_time_changed(hass)
     await hass.async_block_till_done()
 
-    coord_entity = get_coord_entity(hass, mock_device)
-    assert coord_entity.state == STATE_UNAVAILABLE
+    entity_id = entity_registry.async_get_entity_id(
+        "sensor", DOMAIN, f"{DEVICE_ID}_{SensorDeviceClass.ENERGY}"
+    )
+    state = hass.states.get(entity_id)
+    assert state is not None
+    assert state.state == STATE_UNAVAILABLE