diff --git a/homeassistant/components/wallbox/__init__.py b/homeassistant/components/wallbox/__init__.py
index 4ea2cf98be1..b2f8ac7fd5d 100644
--- a/homeassistant/components/wallbox/__init__.py
+++ b/homeassistant/components/wallbox/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryAuthFailed
 
 from .const import CONF_STATION, DOMAIN, UPDATE_INTERVAL
-from .coordinator import InvalidAuth, WallboxCoordinator
+from .coordinator import InvalidAuth, WallboxCoordinator, async_validate_input
 
 PLATFORMS = [Platform.LOCK, Platform.NUMBER, Platform.SENSOR, Platform.SWITCH]
 
@@ -22,18 +22,16 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         entry.data[CONF_PASSWORD],
         jwtTokenDrift=UPDATE_INTERVAL,
     )
+    try:
+        await async_validate_input(hass, wallbox)
+    except InvalidAuth as ex:
+        raise ConfigEntryAuthFailed from ex
+
     wallbox_coordinator = WallboxCoordinator(
         entry.data[CONF_STATION],
         wallbox,
         hass,
     )
-
-    try:
-        await wallbox_coordinator.async_validate_input()
-
-    except InvalidAuth as ex:
-        raise ConfigEntryAuthFailed from ex
-
     await wallbox_coordinator.async_config_entry_first_refresh()
 
     hass.data.setdefault(DOMAIN, {})[entry.entry_id] = wallbox_coordinator
diff --git a/homeassistant/components/wallbox/config_flow.py b/homeassistant/components/wallbox/config_flow.py
index 0969de432f0..bdc51eef963 100644
--- a/homeassistant/components/wallbox/config_flow.py
+++ b/homeassistant/components/wallbox/config_flow.py
@@ -13,7 +13,7 @@ from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 from homeassistant.core import HomeAssistant
 
 from .const import CONF_STATION, DOMAIN
-from .coordinator import InvalidAuth, WallboxCoordinator
+from .coordinator import InvalidAuth, async_validate_input
 
 COMPONENT_DOMAIN = DOMAIN
 
@@ -32,9 +32,8 @@ async def validate_input(hass: HomeAssistant, data: dict[str, Any]) -> dict[str,
     Data has the keys from STEP_USER_DATA_SCHEMA with values provided by the user.
     """
     wallbox = Wallbox(data["username"], data["password"])
-    wallbox_coordinator = WallboxCoordinator(data["station"], wallbox, hass)
 
-    await wallbox_coordinator.async_validate_input()
+    await async_validate_input(hass, wallbox)
 
     # Return info that you want to store in the config entry.
     return {"title": "Wallbox Portal"}
diff --git a/homeassistant/components/wallbox/coordinator.py b/homeassistant/components/wallbox/coordinator.py
index f3679551bc4..99c565d9c0c 100644
--- a/homeassistant/components/wallbox/coordinator.py
+++ b/homeassistant/components/wallbox/coordinator.py
@@ -89,6 +89,21 @@ def _require_authentication[_WallboxCoordinatorT: WallboxCoordinator, **_P](
     return require_authentication
 
 
+def _validate(wallbox: Wallbox) -> None:
+    """Authenticate using Wallbox API."""
+    try:
+        wallbox.authenticate()
+    except requests.exceptions.HTTPError as wallbox_connection_error:
+        if wallbox_connection_error.response.status_code == 403:
+            raise InvalidAuth from wallbox_connection_error
+        raise ConnectionError from wallbox_connection_error
+
+
+async def async_validate_input(hass: HomeAssistant, wallbox: Wallbox) -> None:
+    """Get new sensor data for Wallbox component."""
+    await hass.async_add_executor_job(_validate, wallbox)
+
+
 class WallboxCoordinator(DataUpdateCoordinator[dict[str, Any]]):
     """Wallbox Coordinator class."""
 
@@ -108,19 +123,6 @@ class WallboxCoordinator(DataUpdateCoordinator[dict[str, Any]]):
         """Authenticate using Wallbox API."""
         self._wallbox.authenticate()
 
-    def _validate(self) -> None:
-        """Authenticate using Wallbox API."""
-        try:
-            self._wallbox.authenticate()
-        except requests.exceptions.HTTPError as wallbox_connection_error:
-            if wallbox_connection_error.response.status_code == 403:
-                raise InvalidAuth from wallbox_connection_error
-            raise ConnectionError from wallbox_connection_error
-
-    async def async_validate_input(self) -> None:
-        """Get new sensor data for Wallbox component."""
-        await self.hass.async_add_executor_job(self._validate)
-
     @_require_authentication
     def _get_data(self) -> dict[str, Any]:
         """Get new sensor data for Wallbox component."""