diff --git a/custom_components/biketrax/config_flow.py b/custom_components/biketrax/config_flow.py
index 8265d61..82e3645 100644
--- a/custom_components/biketrax/config_flow.py
+++ b/custom_components/biketrax/config_flow.py
@@ -5,7 +5,7 @@
 from typing import Any
 
 import voluptuous as vol
-from aiobiketrax import Account
+from aiobiketrax import Account, exceptions
 from homeassistant import config_entries
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.data_entry_flow import FlowResult
@@ -37,10 +37,23 @@ async def validate_input(hass: HomeAssistant, data: dict[str, Any]) -> dict[str,
     )
 
     try:
-        await account.update_devices()
-    except:
+        try:
+            await account.update_devices()
+        except Exception as e:  # pylint: disable=broad-except
+            _LOGGER.debug(
+                "Exception while validating input for '%s'.",
+                data["username"],
+                exc_info=e,
+            )
+            raise
+    except exceptions.ConnectionError:
+        raise CannotConnect
+    except exceptions.AuthenticationError:
         raise InvalidAuth
 
+    if not account.devices:
+        raise NoDevice
+
     return {"title": f"BikeTrax {data['username']}"}
 
 
@@ -66,6 +79,8 @@ async def async_step_user(
             errors["base"] = "cannot_connect"
         except InvalidAuth:
             errors["base"] = "invalid_auth"
+        except NoDevice:
+            errors["base"] = "no_device"
         except Exception:  # pylint: disable=broad-except
             _LOGGER.exception("Unexpected exception")
             errors["base"] = "unknown"
@@ -131,3 +146,7 @@ class CannotConnect(HomeAssistantError):
 
 class InvalidAuth(HomeAssistantError):
     """Error to indicate there is invalid auth."""
+
+
+class NoDevice(HomeAssistantError):
+    """Error to indicate there are no devices."""
diff --git a/custom_components/biketrax/coordinator.py b/custom_components/biketrax/coordinator.py
index 6a7833b..350c856 100644
--- a/custom_components/biketrax/coordinator.py
+++ b/custom_components/biketrax/coordinator.py
@@ -4,7 +4,7 @@
 import logging
 from datetime import timedelta
 
-from aiobiketrax import Account
+from aiobiketrax import Account, exceptions
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
@@ -49,8 +49,10 @@ async def _async_update_data(self) -> None:
 
             for device in self.account.devices:
                 await device.update_position()
-        except (HTTPError, TimeoutException) as err:
-            raise UpdateFailed(f"Error communicating with BikeTrax API: {err}") from err
+        except exceptions.BikeTraxError as err:
+            raise UpdateFailed(
+                f"A BikeTrax error occurred while updating the devices: {err}"
+            ) from err
 
     def start_background_task(self):
         """Start the websocket task."""
@@ -83,8 +85,10 @@ async def _async_update_data(self) -> None:
         try:
             for device in self.account.devices:
                 await device.update_trips()
-        except (HTTPError, TimeoutException) as err:
-            raise UpdateFailed(f"Error communicating with BikeTrax API: {err}") from err
+        except exceptions.BikeTraxError as err:
+            raise UpdateFailed(
+                f"A BikeTrax error occurred while updating the trips: {err}"
+            ) from err
 
 
 class SubscriptionDataUpdateCoordinator(BikeTraxDataUpdateCoordinator):
@@ -109,5 +113,7 @@ async def _async_update_data(self) -> None:
         try:
             for device in self.account.devices:
                 await device.update_subscription()
-        except (HTTPError, TimeoutException) as err:
-            raise UpdateFailed(f"Error communicating with BikeTrax API: {err}") from err
+        except exceptions.BikeTraxError as err:
+            raise UpdateFailed(
+                f"A BikeTrax error occurred while updating the subscription data: {err}"
+            ) from err
diff --git a/custom_components/biketrax/translations/de.json b/custom_components/biketrax/translations/de.json
index 94bc194..ca656c8 100644
--- a/custom_components/biketrax/translations/de.json
+++ b/custom_components/biketrax/translations/de.json
@@ -1,11 +1,13 @@
 {
     "config": {
         "abort": {
-            "already_configured": "Gerät wurde bereits konfiguriert"
+            "already_configured": "Ger\u00e4t wurde bereits konfiguriert"
         },
         "error": {
             "cannot_connect": "Verbindung fehlgeschlagen",
-            "invalid_auth": "Ung\u00fcltige Authentifizierung"
+            "invalid_auth": "Ung\u00fcltige Authentifizierung",
+            "no_device": "Kein Ger\u00e4t mit Ihrem Konto verkn\u00fcpft",
+            "unknown": "Unerwarteter Fehler"
         },
         "step": {
             "user": {
diff --git a/custom_components/biketrax/translations/en.json b/custom_components/biketrax/translations/en.json
index 1c95dc7..be416d7 100644
--- a/custom_components/biketrax/translations/en.json
+++ b/custom_components/biketrax/translations/en.json
@@ -6,6 +6,7 @@
         "error": {
             "cannot_connect": "Failed to connect",
             "invalid_auth": "Invalid authentication",
+            "no_device": "No device connected to your account",
             "unknown": "Unexpected error"
         },
         "step": {
diff --git a/custom_components/biketrax/translations/nl.json b/custom_components/biketrax/translations/nl.json
index 428707e..e8e833e 100644
--- a/custom_components/biketrax/translations/nl.json
+++ b/custom_components/biketrax/translations/nl.json
@@ -5,7 +5,9 @@
         },
         "error": {
             "cannot_connect": "Kan geen verbinding maken",
-            "invalid_auth": "Ongeldige authenticatie"
+            "invalid_auth": "Ongeldige authenticatie",
+            "no_device": "Er is geen apparat aan het account gekoppeld",
+            "unknown": "Onbekende fout"
         },
         "step": {
             "user": {