diff --git a/homeassistant/components/motionmount/number.py b/homeassistant/components/motionmount/number.py
index 25370ec51d8..b42c04a6588 100644
--- a/homeassistant/components/motionmount/number.py
+++ b/homeassistant/components/motionmount/number.py
@@ -52,7 +52,10 @@ class MotionMountExtension(MotionMountEntity, NumberEntity):
         try:
             await self.mm.set_extension(int(value))
         except (TimeoutError, socket.gaierror) as ex:
-            raise HomeAssistantError("Failed to communicate with MotionMount") from ex
+            raise HomeAssistantError(
+                translation_domain=DOMAIN,
+                translation_key="failed_communication",
+            ) from ex
 
 
 class MotionMountTurn(MotionMountEntity, NumberEntity):
@@ -78,4 +81,7 @@ class MotionMountTurn(MotionMountEntity, NumberEntity):
         try:
             await self.mm.set_turn(int(value * -1))
         except (TimeoutError, socket.gaierror) as ex:
-            raise HomeAssistantError("Failed to communicate with MotionMount") from ex
+            raise HomeAssistantError(
+                translation_domain=DOMAIN,
+                translation_key="failed_communication",
+            ) from ex
diff --git a/homeassistant/components/motionmount/select.py b/homeassistant/components/motionmount/select.py
index 9bca6578bcc..9b43d901a21 100644
--- a/homeassistant/components/motionmount/select.py
+++ b/homeassistant/components/motionmount/select.py
@@ -91,6 +91,9 @@ class MotionMountPresets(MotionMountEntity, SelectEntity):
         try:
             await self.mm.go_to_preset(index)
         except (TimeoutError, socket.gaierror) as ex:
-            raise HomeAssistantError("Failed to communicate with MotionMount") from ex
+            raise HomeAssistantError(
+                translation_domain=DOMAIN,
+                translation_key="failed_communication",
+            ) from ex
         else:
             self._attr_current_option = option
diff --git a/homeassistant/components/motionmount/strings.json b/homeassistant/components/motionmount/strings.json
index 39f7c53db35..bd28156607c 100644
--- a/homeassistant/components/motionmount/strings.json
+++ b/homeassistant/components/motionmount/strings.json
@@ -56,5 +56,10 @@
         }
       }
     }
+  },
+  "exceptions": {
+    "failed_communication": {
+      "message": "Failed to communicate with MotionMount"
+    }
   }
 }