diff --git a/homeassistant/components/comelit/coordinator.py b/homeassistant/components/comelit/coordinator.py
index b35acc60b59..a5a90c07568 100644
--- a/homeassistant/components/comelit/coordinator.py
+++ b/homeassistant/components/comelit/coordinator.py
@@ -96,9 +96,16 @@ class ComelitBaseCoordinator(DataUpdateCoordinator[T]):
             await self.api.login()
             return await self._async_update_system_data()
         except (CannotConnect, CannotRetrieveData) as err:
-            raise UpdateFailed(repr(err)) from err
+            raise UpdateFailed(
+                translation_domain=DOMAIN,
+                translation_key="update_failed",
+                translation_placeholders={"error": repr(err)},
+            ) from err
         except CannotAuthenticate as err:
-            raise ConfigEntryAuthFailed from err
+            raise ConfigEntryAuthFailed(
+                translation_domain=DOMAIN,
+                translation_key="cannot_authenticate",
+            ) from err
 
     @abstractmethod
     async def _async_update_system_data(self) -> T:
diff --git a/homeassistant/components/comelit/quality_scale.yaml b/homeassistant/components/comelit/quality_scale.yaml
index 614a1f9cab7..b6d6cbc1046 100644
--- a/homeassistant/components/comelit/quality_scale.yaml
+++ b/homeassistant/components/comelit/quality_scale.yaml
@@ -70,9 +70,7 @@ rules:
   entity-device-class: done
   entity-disabled-by-default: done
   entity-translations: done
-  exception-translations:
-    status: todo
-    comment: PR in progress
+  exception-translations: done
   icon-translations: done
   reconfiguration-flow:
     status: todo
diff --git a/homeassistant/components/comelit/strings.json b/homeassistant/components/comelit/strings.json
index 55bae00e3d8..2076ecb5c1e 100644
--- a/homeassistant/components/comelit/strings.json
+++ b/homeassistant/components/comelit/strings.json
@@ -74,7 +74,10 @@
       "message": "Error connecting: {error}"
     },
     "cannot_authenticate": {
-      "message": "Error authenticating: {error}"
+      "message": "Error authenticating"
+    },
+    "updated_failed": {
+      "message": "Failed to update data: {error}"
     }
   }
 }