diff --git a/homeassistant/components/fritzbox/climate.py b/homeassistant/components/fritzbox/climate.py
index c25113f1bca..118e03c391f 100644
--- a/homeassistant/components/fritzbox/climate.py
+++ b/homeassistant/components/fritzbox/climate.py
@@ -85,6 +85,8 @@ async def async_setup_entry(
 class FritzboxThermostat(FritzBoxDeviceEntity, ClimateEntity):
     """The thermostat class for FRITZ!SmartHome thermostats."""
 
+    _attr_max_temp = MAX_TEMPERATURE
+    _attr_min_temp = MIN_TEMPERATURE
     _attr_precision = PRECISION_HALVES
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_translation_key = "thermostat"
@@ -135,11 +137,13 @@ class FritzboxThermostat(FritzBoxDeviceEntity, ClimateEntity):
 
     async def async_set_temperature(self, **kwargs: Any) -> None:
         """Set new target temperature."""
-        target_temp = kwargs.get(ATTR_TEMPERATURE)
-        hvac_mode = kwargs.get(ATTR_HVAC_MODE)
-        if hvac_mode == HVACMode.OFF:
+        if (hvac_mode := kwargs.get(ATTR_HVAC_MODE)) is HVACMode.OFF:
             await self.async_set_hvac_mode(hvac_mode)
-        elif target_temp is not None:
+        elif (target_temp := kwargs.get(ATTR_TEMPERATURE)) is not None:
+            if target_temp == OFF_API_TEMPERATURE:
+                target_temp = OFF_REPORT_SET_TEMPERATURE
+            elif target_temp == ON_API_TEMPERATURE:
+                target_temp = ON_REPORT_SET_TEMPERATURE
             await self.hass.async_add_executor_job(
                 self.data.set_target_temperature, target_temp, True
             )
@@ -169,12 +173,12 @@ class FritzboxThermostat(FritzBoxDeviceEntity, ClimateEntity):
                 translation_domain=DOMAIN,
                 translation_key="change_hvac_while_active_mode",
             )
-        if self.hvac_mode == hvac_mode:
+        if self.hvac_mode is hvac_mode:
             LOGGER.debug(
                 "%s is already in requested hvac mode %s", self.name, hvac_mode
             )
             return
-        if hvac_mode == HVACMode.OFF:
+        if hvac_mode is HVACMode.OFF:
             await self.async_set_temperature(temperature=OFF_REPORT_SET_TEMPERATURE)
         else:
             if value_scheduled_preset(self.data) == PRESET_ECO:
@@ -208,16 +212,6 @@ class FritzboxThermostat(FritzBoxDeviceEntity, ClimateEntity):
         elif preset_mode == PRESET_ECO:
             await self.async_set_temperature(temperature=self.data.eco_temperature)
 
-    @property
-    def min_temp(self) -> int:
-        """Return the minimum temperature."""
-        return MIN_TEMPERATURE
-
-    @property
-    def max_temp(self) -> int:
-        """Return the maximum temperature."""
-        return MAX_TEMPERATURE
-
     @property
     def extra_state_attributes(self) -> ClimateExtraAttributes:
         """Return the device specific state attributes."""
diff --git a/tests/components/fritzbox/test_climate.py b/tests/components/fritzbox/test_climate.py
index 87e6d36e3b6..f170836fa9b 100644
--- a/tests/components/fritzbox/test_climate.py
+++ b/tests/components/fritzbox/test_climate.py
@@ -23,7 +23,12 @@ from homeassistant.components.climate import (
     SERVICE_SET_TEMPERATURE,
     HVACMode,
 )
-from homeassistant.components.fritzbox.climate import PRESET_HOLIDAY, PRESET_SUMMER
+from homeassistant.components.fritzbox.climate import (
+    OFF_API_TEMPERATURE,
+    ON_API_TEMPERATURE,
+    PRESET_HOLIDAY,
+    PRESET_SUMMER,
+)
 from homeassistant.components.fritzbox.const import (
     ATTR_STATE_BATTERY_LOW,
     ATTR_STATE_HOLIDAY_MODE,
@@ -367,9 +372,23 @@ async def test_set_hvac_mode(
     assert device.set_target_temperature.call_args_list == expected_call_args
 
 
-async def test_set_preset_mode_comfort(hass: HomeAssistant, fritz: Mock) -> None:
+@pytest.mark.parametrize(
+    ("comfort_temperature", "expected_call_args"),
+    [
+        (20, [call(20, True)]),
+        (28, [call(28, True)]),
+        (ON_API_TEMPERATURE, [call(30, True)]),
+    ],
+)
+async def test_set_preset_mode_comfort(
+    hass: HomeAssistant,
+    fritz: Mock,
+    comfort_temperature: int,
+    expected_call_args: list[_Call],
+) -> None:
     """Test setting preset mode."""
     device = FritzDeviceClimateMock()
+    device.comfort_temperature = comfort_temperature
     assert await setup_config_entry(
         hass, MOCK_CONFIG[FB_DOMAIN][CONF_DEVICES][0], ENTITY_ID, device, fritz
     )
@@ -380,12 +399,27 @@ async def test_set_preset_mode_comfort(hass: HomeAssistant, fritz: Mock) -> None
         {ATTR_ENTITY_ID: ENTITY_ID, ATTR_PRESET_MODE: PRESET_COMFORT},
         True,
     )
-    assert device.set_target_temperature.call_args_list == [call(22, True)]
+    assert device.set_target_temperature.call_count == len(expected_call_args)
+    assert device.set_target_temperature.call_args_list == expected_call_args
 
 
-async def test_set_preset_mode_eco(hass: HomeAssistant, fritz: Mock) -> None:
+@pytest.mark.parametrize(
+    ("eco_temperature", "expected_call_args"),
+    [
+        (20, [call(20, True)]),
+        (16, [call(16, True)]),
+        (OFF_API_TEMPERATURE, [call(0, True)]),
+    ],
+)
+async def test_set_preset_mode_eco(
+    hass: HomeAssistant,
+    fritz: Mock,
+    eco_temperature: int,
+    expected_call_args: list[_Call],
+) -> None:
     """Test setting preset mode."""
     device = FritzDeviceClimateMock()
+    device.eco_temperature = eco_temperature
     assert await setup_config_entry(
         hass, MOCK_CONFIG[FB_DOMAIN][CONF_DEVICES][0], ENTITY_ID, device, fritz
     )
@@ -396,7 +430,8 @@ async def test_set_preset_mode_eco(hass: HomeAssistant, fritz: Mock) -> None:
         {ATTR_ENTITY_ID: ENTITY_ID, ATTR_PRESET_MODE: PRESET_ECO},
         True,
     )
-    assert device.set_target_temperature.call_args_list == [call(16, True)]
+    assert device.set_target_temperature.call_count == len(expected_call_args)
+    assert device.set_target_temperature.call_args_list == expected_call_args
 
 
 async def test_preset_mode_update(hass: HomeAssistant, fritz: Mock) -> None: