diff --git a/homeassistant/components/hisense_aehw4a1/climate.py b/homeassistant/components/hisense_aehw4a1/climate.py
index 9612fd74f0b0..a5d8dc800af5 100644
--- a/homeassistant/components/hisense_aehw4a1/climate.py
+++ b/homeassistant/components/hisense_aehw4a1/climate.py
@@ -160,7 +160,6 @@ def __init__(self, device):
         self._preset_modes = PRESET_MODES
         self._available = None
         self._on = None
-        self._temperature_unit = None
         self._current_temperature = None
         self._target_temperature = None
         self._attr_hvac_mode = None
@@ -185,9 +184,9 @@ async def async_update(self) -> None:
         self._on = status["run_status"]
 
         if status["temperature_Fahrenheit"] == "0":
-            self._temperature_unit = TEMP_CELSIUS
+            self._attr_temperature_unit = TEMP_CELSIUS
         else:
-            self._temperature_unit = TEMP_FAHRENHEIT
+            self._attr_temperature_unit = TEMP_FAHRENHEIT
 
         self._current_temperature = int(status["indoor_temperature_status"], 2)
 
@@ -237,11 +236,6 @@ def name(self):
         """Return the name of the climate device."""
         return self._unique_id
 
-    @property
-    def temperature_unit(self):
-        """Return the unit of measurement."""
-        return self._temperature_unit
-
     @property
     def current_temperature(self):
         """Return the current temperature."""
@@ -285,14 +279,14 @@ def swing_modes(self):
     @property
     def min_temp(self):
         """Return the minimum temperature."""
-        if self._temperature_unit == TEMP_CELSIUS:
+        if self.temperature_unit == TEMP_CELSIUS:
             return MIN_TEMP_C
         return MIN_TEMP_F
 
     @property
     def max_temp(self):
         """Return the maximum temperature."""
-        if self._temperature_unit == TEMP_CELSIUS:
+        if self.temperature_unit == TEMP_CELSIUS:
             return MAX_TEMP_C
         return MAX_TEMP_F
 
@@ -312,7 +306,7 @@ async def async_set_temperature(self, **kwargs: Any) -> None:
             _LOGGER.debug("Setting temp of %s to %s", self._unique_id, temp)
             if self._preset_mode != PRESET_NONE:
                 await self.async_set_preset_mode(PRESET_NONE)
-            if self._temperature_unit == TEMP_CELSIUS:
+            if self.temperature_unit == TEMP_CELSIUS:
                 await self._device.command(f"temp_{int(temp)}_C")
             else:
                 await self._device.command(f"temp_{int(temp)}_F")