diff --git a/custom_components/econnect_metronet/config_flow.py b/custom_components/econnect_metronet/config_flow.py
index f90afe7..63685e1 100644
--- a/custom_components/econnect_metronet/config_flow.py
+++ b/custom_components/econnect_metronet/config_flow.py
@@ -1,7 +1,7 @@
-"""Config flow for E-connect Alarm integration."""
 import logging
 
 import voluptuous as vol
+from elmo.api.client import ElmoClient
 from elmo.api.exceptions import CredentialError
 from elmo.systems import ELMO_E_CONNECT as E_CONNECT_DEFAULT
 from homeassistant import config_entries
@@ -21,7 +21,7 @@
     SUPPORTED_SYSTEMS,
 )
 from .exceptions import InvalidAreas
-from .helpers import parse_areas_config, validate_credentials
+from .helpers import parse_areas_config
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -43,8 +43,11 @@ async def async_step_user(self, user_input=None):
         errors = {}
         if user_input is not None:
             try:
-                # Validate submitted configuration
-                await validate_credentials(self.hass, user_input)
+                # Validate credentials
+                client = ElmoClient(user_input.get(CONF_SYSTEM_URL), domain=user_input.get(CONF_DOMAIN))
+                await self.hass.async_add_executor_job(
+                    client.auth, user_input.get(CONF_USERNAME), user_input.get(CONF_PASSWORD)
+                )
             except ConnectionError:
                 errors["base"] = "cannot_connect"
             except CredentialError:
diff --git a/custom_components/econnect_metronet/helpers.py b/custom_components/econnect_metronet/helpers.py
index 92862bd..68f273d 100644
--- a/custom_components/econnect_metronet/helpers.py
+++ b/custom_components/econnect_metronet/helpers.py
@@ -1,12 +1,10 @@
 from typing import Union
 
-from elmo.api.client import ElmoClient
-from homeassistant import core
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_USERNAME
 from homeassistant.util import slugify
 
-from .const import CONF_DOMAIN, CONF_SYSTEM_NAME, CONF_SYSTEM_URL, DOMAIN
+from .const import CONF_SYSTEM_NAME, DOMAIN
 from .exceptions import InvalidAreas
 
 
@@ -49,29 +47,6 @@ def parse_areas_config(config: str, raises: bool = False):
         return []
 
 
-async def validate_credentials(hass: core.HomeAssistant, config: dict):
-    """Validate if user input includes valid credentials to connect.
-
-    Initialize the client with an API endpoint and a vendor and authenticate
-    your connection to retrieve the access token.
-
-    Args:
-        hass: HomeAssistant instance.
-        data: data that needs validation (configured username/password).
-    Raises:
-        ConnectionError: if there is a connection error.
-        CredentialError: if given credentials are incorrect.
-        HTTPError: if the API backend answers with errors.
-    Returns:
-        `True` if given `data` includes valid credential checked with
-        e-connect backend.
-    """
-    # Check Credentials
-    client = ElmoClient(config.get(CONF_SYSTEM_URL), domain=config.get(CONF_DOMAIN))
-    await hass.async_add_executor_job(client.auth, config.get(CONF_USERNAME), config.get(CONF_PASSWORD))
-    return True
-
-
 def generate_entity_id(config: ConfigEntry, name: Union[str, None] = None) -> str:
     """Generate an entity ID based on system configuration or username.