diff --git a/homeassistant/components/home_connect/__init__.py b/homeassistant/components/home_connect/__init__.py
index 47a5aa99edbb66..2c351f4dfa1b94 100644
--- a/homeassistant/components/home_connect/__init__.py
+++ b/homeassistant/components/home_connect/__init__.py
@@ -329,10 +329,10 @@ def update_unique_id(
 
 def get_dict_from_home_connect_error(err: api.HomeConnectError) -> dict[str, Any]:
     """Return a dict from a Home Connect error."""
-    return (
-        err.args[0]
+    return {
+        "description": cast(dict[str, Any], err.args[0]).get("description", "?")
         if len(err.args) > 0 and isinstance(err.args[0], dict)
-        else {"description": err.args[0]}
+        else err.args[0]
         if len(err.args) > 0 and isinstance(err.args[0], str)
-        else {}
-    )
+        else "?",
+    }
diff --git a/homeassistant/components/home_connect/strings.json b/homeassistant/components/home_connect/strings.json
index eb57d822b155a0..934aed5b7d5f56 100644
--- a/homeassistant/components/home_connect/strings.json
+++ b/homeassistant/components/home_connect/strings.json
@@ -38,13 +38,13 @@
       "message": "Error while trying to set color of {entity_id}: {description}"
     },
     "set_setting": {
-      "message": "Error while trying to assign the value \"{value}\" to the setting \"{key}\" for {entity_id}: {description}"
+      "message": "Error while trying to assign the value \"{value}\" to the setting \"{setting_key}\" for {entity_id}: {description}"
     },
     "turn_on": {
-      "message": "Error while trying to turn on {entity_id} ({key}): {description}"
+      "message": "Error while trying to turn on {entity_id} ({setting_key}): {description}"
     },
     "turn_off": {
-      "message": "Error while trying to turn off {entity_id} ({key}): {description}"
+      "message": "Error while trying to turn off {entity_id} ({setting_key}): {description}"
     },
     "start_program": {
       "message": "Error while trying to start program {program}: {description}"
diff --git a/tests/components/home_connect/test_switch.py b/tests/components/home_connect/test_switch.py
index 06201ffd58c9a7..e4f45fbcdf9cba 100644
--- a/tests/components/home_connect/test_switch.py
+++ b/tests/components/home_connect/test_switch.py
@@ -162,7 +162,7 @@ async def test_switch_functionality(
             SERVICE_TURN_OFF,
             "set_setting",
             "Dishwasher",
-            r"Error.*turn.*off.*appliance.*value",
+            r"Error.*turn.*off.*",
         ),
         (
             "switch.dishwasher_power",
@@ -170,7 +170,7 @@ async def test_switch_functionality(
             SERVICE_TURN_ON,
             "set_setting",
             "Dishwasher",
-            r"Error.*turn.*on.*appliance.*",
+            r"Error.*turn.*on.*",
         ),
         (
             "switch.dishwasher_child_lock",
@@ -178,7 +178,7 @@ async def test_switch_functionality(
             SERVICE_TURN_ON,
             "set_setting",
             "Dishwasher",
-            r"Error.*turn.*on.*key.*",
+            r"Error.*turn.*on.*",
         ),
         (
             "switch.dishwasher_child_lock",
@@ -186,7 +186,7 @@ async def test_switch_functionality(
             SERVICE_TURN_OFF,
             "set_setting",
             "Dishwasher",
-            r"Error.*turn.*off.*key.*",
+            r"Error.*turn.*off.*",
         ),
     ],
     indirect=["problematic_appliance"],
@@ -297,7 +297,7 @@ async def test_ent_desc_switch_functionality(
             SERVICE_TURN_ON,
             "set_setting",
             "FridgeFreezer",
-            r"Error.*turn.*on.*key.*",
+            r"Error.*turn.*on.*",
         ),
         (
             "switch.fridgefreezer_freezer_super_mode",
@@ -305,7 +305,7 @@ async def test_ent_desc_switch_functionality(
             SERVICE_TURN_OFF,
             "set_setting",
             "FridgeFreezer",
-            r"Error.*turn.*off.*key.*",
+            r"Error.*turn.*off.*",
         ),
     ],
     indirect=["problematic_appliance"],