diff --git a/homeassistant/components/devolo_home_control/climate.py b/homeassistant/components/devolo_home_control/climate.py
index 2f20e82f7fed..90f7003ded0b 100644
--- a/homeassistant/components/devolo_home_control/climate.py
+++ b/homeassistant/components/devolo_home_control/climate.py
@@ -104,6 +104,5 @@ class DevoloClimateDeviceEntity(DevoloMultiLevelSwitchDeviceEntity, ClimateEntit
         if not self._multi_level_switch_property.set(kwargs[ATTR_TEMPERATURE]):
             raise HomeAssistantError(
                 translation_domain=DOMAIN,
-                translation_key="set",
-                translation_placeholders={"placeholder": "temperature"},
+                translation_key="set_failed",
             )
diff --git a/homeassistant/components/devolo_home_control/cover.py b/homeassistant/components/devolo_home_control/cover.py
index 7f9fc5313c3e..e9d82c3b9609 100644
--- a/homeassistant/components/devolo_home_control/cover.py
+++ b/homeassistant/components/devolo_home_control/cover.py
@@ -79,6 +79,5 @@ class DevoloCoverDeviceEntity(DevoloMultiLevelSwitchDeviceEntity, CoverEntity):
         if not self._multi_level_switch_property.set(position):
             raise HomeAssistantError(
                 translation_domain=DOMAIN,
-                translation_key="set",
-                translation_placeholders={"placeholder": "cover position"},
+                translation_key="set_failed",
             )
diff --git a/homeassistant/components/devolo_home_control/light.py b/homeassistant/components/devolo_home_control/light.py
index 44c321bd4385..4c627cf01728 100644
--- a/homeassistant/components/devolo_home_control/light.py
+++ b/homeassistant/components/devolo_home_control/light.py
@@ -88,8 +88,7 @@ class DevoloLightDeviceEntity(DevoloMultiLevelSwitchDeviceEntity, LightEntity):
         if not self._multi_level_switch_property.set(value):
             raise HomeAssistantError(
                 translation_domain=DOMAIN,
-                translation_key="set",
-                translation_placeholders={"placeholder": "brightness"},
+                translation_key="set_failed",
             )
 
     def _set_switch(self, state: bool) -> None:
@@ -102,8 +101,7 @@ class DevoloLightDeviceEntity(DevoloMultiLevelSwitchDeviceEntity, LightEntity):
             if not self._binary_switch_property.set(state):
                 raise HomeAssistantError(
                     translation_domain=DOMAIN,
-                    translation_key="set",
-                    translation_placeholders={"placeholder": "state"},
+                    translation_key="set_failed",
                 )
         except SwitchingProtected as err:
             raise ServiceValidationError(
diff --git a/homeassistant/components/devolo_home_control/siren.py b/homeassistant/components/devolo_home_control/siren.py
index 9235d77f1bbe..ee9f62d53de6 100644
--- a/homeassistant/components/devolo_home_control/siren.py
+++ b/homeassistant/components/devolo_home_control/siren.py
@@ -83,8 +83,7 @@ class DevoloSirenDeviceEntity(DevoloMultiLevelSwitchDeviceEntity, SirenEntity):
         if not self._multi_level_switch_property.set(tone):
             raise HomeAssistantError(
                 translation_domain=DOMAIN,
-                translation_key="set",
-                translation_placeholders={"placeholder": "siren's tone"},
+                translation_key="set_failed",
             )
 
     @override
diff --git a/homeassistant/components/devolo_home_control/strings.json b/homeassistant/components/devolo_home_control/strings.json
index 340d6b8d6e12..c8e4f8bf86e9 100644
--- a/homeassistant/components/devolo_home_control/strings.json
+++ b/homeassistant/components/devolo_home_control/strings.json
@@ -65,11 +65,11 @@
     "maintenance": {
       "message": "devolo Home Control is currently in maintenance mode."
     },
-    "set": {
-      "message": "An error occurred while setting the {placeholder}."
+    "set_failed": {
+      "message": "The devolo Home Control central unit did not accept the command."
     },
     "switch_protected": {
-      "message": "Switching is protected by configuration."
+      "message": "Remote switching is disabled for this device. Please use the physical button."
     }
   }
 }
diff --git a/homeassistant/components/devolo_home_control/switch.py b/homeassistant/components/devolo_home_control/switch.py
index 14d73f6201cb..bd9a6c37fc13 100644
--- a/homeassistant/components/devolo_home_control/switch.py
+++ b/homeassistant/components/devolo_home_control/switch.py
@@ -84,8 +84,7 @@ class DevoloSwitch(DevoloDeviceEntity, SwitchEntity):
             if not self._binary_switch_property.set(state=state):
                 raise HomeAssistantError(
                     translation_domain=DOMAIN,
-                    translation_key="set",
-                    translation_placeholders={"placeholder": "state"},
+                    translation_key="set_failed",
                 )
         except SwitchingProtected as err:
             raise ServiceValidationError(
diff --git a/tests/components/devolo_home_control/test_climate.py b/tests/components/devolo_home_control/test_climate.py
index 7cdfa425c193..6922377de8ef 100644
--- a/tests/components/devolo_home_control/test_climate.py
+++ b/tests/components/devolo_home_control/test_climate.py
@@ -79,9 +79,8 @@ async def test_climate(
             },
             blocking=True,
         )
-    assert error.value.translation_key == "set"
+    assert error.value.translation_key == "set_failed"
     assert error.value.translation_domain == DOMAIN
-    assert error.value.translation_placeholders == {"placeholder": "temperature"}
 
     # Emulate websocket message: device went offline
     test_gateway.devices["Test"].status = 1
diff --git a/tests/components/devolo_home_control/test_cover.py b/tests/components/devolo_home_control/test_cover.py
index 841e2cc69354..30e36859a7e2 100644
--- a/tests/components/devolo_home_control/test_cover.py
+++ b/tests/components/devolo_home_control/test_cover.py
@@ -95,9 +95,8 @@ async def test_cover(
             {ATTR_ENTITY_ID: f"{COVER_DOMAIN}.test_test", ATTR_POSITION: 50},
             blocking=True,
         )
-    assert error.value.translation_key == "set"
+    assert error.value.translation_key == "set_failed"
     assert error.value.translation_domain == DOMAIN
-    assert error.value.translation_placeholders == {"placeholder": "cover position"}
 
     # Emulate websocket message: device went offline
     test_gateway.devices["Test"].status = 1
diff --git a/tests/components/devolo_home_control/test_light.py b/tests/components/devolo_home_control/test_light.py
index eab4364d7733..c8ea81c9a2ba 100644
--- a/tests/components/devolo_home_control/test_light.py
+++ b/tests/components/devolo_home_control/test_light.py
@@ -95,9 +95,8 @@ async def test_light_without_binary_sensor(
             {ATTR_ENTITY_ID: f"{LIGHT_DOMAIN}.test_test", ATTR_BRIGHTNESS: 50},
             blocking=True,
         )
-    assert error.value.translation_key == "set"
+    assert error.value.translation_key == "set_failed"
     assert error.value.translation_domain == DOMAIN
-    assert error.value.translation_placeholders == {"placeholder": "brightness"}
 
     # Emulate websocket message: device went offline
     test_gateway.devices["Test"].status = 1
@@ -171,9 +170,8 @@ async def test_light_with_binary_sensor(
             {ATTR_ENTITY_ID: f"{LIGHT_DOMAIN}.test_test"},
             blocking=True,
         )
-    assert error.value.translation_key == "set"
+    assert error.value.translation_key == "set_failed"
     assert error.value.translation_domain == DOMAIN
-    assert error.value.translation_placeholders == {"placeholder": "state"}
 
     with (
         patch(
diff --git a/tests/components/devolo_home_control/test_siren.py b/tests/components/devolo_home_control/test_siren.py
index 4683ebc75b32..82ee8972033d 100644
--- a/tests/components/devolo_home_control/test_siren.py
+++ b/tests/components/devolo_home_control/test_siren.py
@@ -114,9 +114,8 @@ async def test_siren_switching(
             {"entity_id": f"{SIREN_DOMAIN}.test_test"},
             blocking=True,
         )
-    assert error.value.translation_key == "set"
+    assert error.value.translation_key == "set_failed"
     assert error.value.translation_domain == DOMAIN
-    assert error.value.translation_placeholders == {"placeholder": "siren's tone"}
 
 
 async def test_siren_change_default_tone(
diff --git a/tests/components/devolo_home_control/test_switch.py b/tests/components/devolo_home_control/test_switch.py
index 557035c07b6f..7af6321b6f76 100644
--- a/tests/components/devolo_home_control/test_switch.py
+++ b/tests/components/devolo_home_control/test_switch.py
@@ -84,9 +84,8 @@ async def test_switch(
             {ATTR_ENTITY_ID: f"{SWITCH_DOMAIN}.test_test"},
             blocking=True,
         )
-    assert error.value.translation_key == "set"
+    assert error.value.translation_key == "set_failed"
     assert error.value.translation_domain == DOMAIN
-    assert error.value.translation_placeholders == {"placeholder": "state"}
 
     with (
         patch(