diff --git a/homeassistant/components/roomba/config_flow.py b/homeassistant/components/roomba/config_flow.py
index 3668984a41f..e323150fba3 100644
--- a/homeassistant/components/roomba/config_flow.py
+++ b/homeassistant/components/roomba/config_flow.py
@@ -86,8 +86,6 @@ class RoombaConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
                 info = await validate_input(self.hass, user_input)
             except CannotConnect:
                 errors = {"base": "cannot_connect"}
-            except Exception:  # pylint: disable=broad-except
-                errors = {"base": "unknown"}
 
             if "base" not in errors:
                 await async_disconnect_or_timeout(self.hass, info[ROOMBA_SESSION])
diff --git a/homeassistant/components/roomba/strings.json b/homeassistant/components/roomba/strings.json
index a679b2fdbb5..c15c5f5893a 100644
--- a/homeassistant/components/roomba/strings.json
+++ b/homeassistant/components/roomba/strings.json
@@ -15,7 +15,6 @@
       }
     },
     "error": {
-      "unknown": "Unexpected error",
       "cannot_connect": "Failed to connect, please try again"
     }
   },