diff --git a/homeassistant/components/incomfort/coordinator.py b/homeassistant/components/incomfort/coordinator.py
index a5c8da0c208..20cc8e7cc69 100644
--- a/homeassistant/components/incomfort/coordinator.py
+++ b/homeassistant/components/incomfort/coordinator.py
@@ -66,10 +66,10 @@ class InComfortDataCoordinator(DataUpdateCoordinator[InComfortData]):
             for heater in self.incomfort_data.heaters:
                 await heater.update()
         except TimeoutError as exc:
-            raise UpdateFailed from exc
+            raise UpdateFailed("Timeout error") from exc
         except IncomfortError as exc:
             if isinstance(exc.message, ClientResponseError):
                 if exc.message.status == 401:
                     raise ConfigEntryError("Incorrect credentials") from exc
-            raise UpdateFailed from exc
+            raise UpdateFailed(exc.message) from exc
         return self.incomfort_data
diff --git a/tests/components/incomfort/test_init.py b/tests/components/incomfort/test_init.py
index 0390a47a616..504ab02ea81 100644
--- a/tests/components/incomfort/test_init.py
+++ b/tests/components/incomfort/test_init.py
@@ -3,7 +3,7 @@
 from datetime import timedelta
 from unittest.mock import MagicMock, patch
 
-from aiohttp import ClientResponseError
+from aiohttp import ClientResponseError, RequestInfo
 from freezegun.api import FrozenDateTimeFactory
 from incomfortclient import IncomfortError
 import pytest
@@ -63,7 +63,18 @@ async def test_coordinator_updates(
     "exc",
     [
         IncomfortError(ClientResponseError(None, None, status=401)),
-        IncomfortError(ClientResponseError(None, None, status=500)),
+        IncomfortError(
+            ClientResponseError(
+                RequestInfo(
+                    url="http://example.com",
+                    method="GET",
+                    headers=[],
+                    real_url="http://example.com",
+                ),
+                None,
+                status=500,
+            )
+        ),
         IncomfortError(ValueError("some_error")),
         TimeoutError,
     ],