diff --git a/homeassistant/components/co2signal/config_flow.py b/homeassistant/components/co2signal/config_flow.py
index 530496811d9..00acd2829a6 100644
--- a/homeassistant/components/co2signal/config_flow.py
+++ b/homeassistant/components/co2signal/config_flow.py
@@ -3,11 +3,11 @@
 from __future__ import annotations
 
 from collections.abc import Mapping
+import logging
 from typing import Any
 
 from aioelectricitymaps import (
     ElectricityMaps,
-    ElectricityMapsError,
     ElectricityMapsInvalidTokenError,
     ElectricityMapsNoDataError,
 )
@@ -36,6 +36,8 @@ TYPE_USE_HOME = "use_home_location"
 TYPE_SPECIFY_COORDINATES = "specify_coordinates"
 TYPE_SPECIFY_COUNTRY = "specify_country_code"
 
+_LOGGER = logging.getLogger(__name__)
+
 
 class ElectricityMapsConfigFlow(ConfigFlow, domain=DOMAIN):
     """Handle a config flow for Co2signal."""
@@ -158,7 +160,8 @@ class ElectricityMapsConfigFlow(ConfigFlow, domain=DOMAIN):
                 errors["base"] = "invalid_auth"
             except ElectricityMapsNoDataError:
                 errors["base"] = "no_data"
-            except ElectricityMapsError:
+            except Exception:
+                _LOGGER.exception("Unexpected error occurred while checking API key")
                 errors["base"] = "unknown"
             else:
                 if self.source == SOURCE_REAUTH: