diff --git a/homeassistant/components/flexit_bacnet/climate.py b/homeassistant/components/flexit_bacnet/climate.py
index f611528a6c3..878b63f938f 100644
--- a/homeassistant/components/flexit_bacnet/climate.py
+++ b/homeassistant/components/flexit_bacnet/climate.py
@@ -111,7 +111,13 @@ class FlexitClimateEntity(FlexitEntity, ClimateEntity):
             else:
                 await self.device.set_air_temp_setpoint_home(temperature)
         except (asyncio.exceptions.TimeoutError, ConnectionError, DecodingError) as exc:
-            raise HomeAssistantError from exc
+            raise HomeAssistantError(
+                translation_domain=DOMAIN,
+                translation_key="set_temperature",
+                translation_placeholders={
+                    "temperature": str(temperature),
+                },
+            ) from exc
         finally:
             await self.coordinator.async_refresh()
 
diff --git a/homeassistant/components/flexit_bacnet/strings.json b/homeassistant/components/flexit_bacnet/strings.json
index e9acbd46a37..6364d59e4e8 100644
--- a/homeassistant/components/flexit_bacnet/strings.json
+++ b/homeassistant/components/flexit_bacnet/strings.json
@@ -130,6 +130,9 @@
     "set_preset_mode": {
       "message": "Failed to set preset mode {preset}."
     },
+    "set_temperature": {
+      "message": "Failed to set temperature {temperature}."
+    },
     "set_hvac_mode": {
       "message": "Failed to set HVAC mode {mode}."
     },