diff --git a/custom_components/xiaomi_home/climate.py b/custom_components/xiaomi_home/climate.py
index 5a390b2..63c01a7 100644
--- a/custom_components/xiaomi_home/climate.py
+++ b/custom_components/xiaomi_home/climate.py
@@ -605,7 +605,7 @@ class AirConditioner(FeatureOnOff, FeatureTargetTemperature,
 
 
 class PtcBathHeater(FeatureTargetTemperature, FeatureTemperature,
-                    FeatureFanMode, FeatureSwingMode):
+                    FeatureFanMode, FeatureSwingMode, FeaturePresetMode):
     """Ptc bath heater"""
     _prop_mode: Optional[MIoTSpecProperty]
     _hvac_mode_map: Optional[dict[int, HVACMode]]
@@ -626,26 +626,20 @@ class PtcBathHeater(FeatureTargetTemperature, FeatureTemperature,
                     continue
                 self._hvac_mode_map = {}
                 for item in prop.value_list.items:
-                    if item.name in {'off', 'idle'
-                                    } and (HVACMode.OFF not in list(
-                                        self._hvac_mode_map.values())):
-                        self._hvac_mode_map[item.value] = HVACMode.OFF
-                    elif item.name in {'auto'}:
+                    if item.name in {'off', 'idle'}:
+                        if (HVACMode.OFF
+                                not in list(self._hvac_mode_map.values())):
+                            self._hvac_mode_map[item.value] = HVACMode.OFF
+                    elif (HVACMode.AUTO
+                          not in list(self._hvac_mode_map.values())):
                         self._hvac_mode_map[item.value] = HVACMode.AUTO
-                    elif item.name in {'ventilate'}:
-                        self._hvac_mode_map[item.value] = HVACMode.COOL
-                    elif item.name in {'heat', 'quick_heat'
-                                      } and (HVACMode.HEAT not in list(
-                                          self._hvac_mode_map.values())):
-                        self._hvac_mode_map[item.value] = HVACMode.HEAT
-                    elif item.name in {'defog'}:
-                        self._hvac_mode_map[item.value] = HVACMode.HEAT_COOL
-                    elif item.name in {'dry'}:
-                        self._hvac_mode_map[item.value] = HVACMode.DRY
-                    elif item.name in {'fan'}:
-                        self._hvac_mode_map[item.value] = HVACMode.FAN_ONLY
                 self._attr_hvac_modes = list(self._hvac_mode_map.values())
-                self._prop_mode = prop
+                if HVACMode.OFF in self._attr_hvac_modes:
+                    self._prop_mode = prop
+                else:
+                    _LOGGER.error('no idle mode, %s', self.entity_id)
+        # preset modes
+        self._init_preset_modes('ptc-bath-heater', 'mode')
 
     async def async_set_hvac_mode(self, hvac_mode: HVACMode) -> None:
         """Set the target hvac mode."""
@@ -655,15 +649,20 @@ class PtcBathHeater(FeatureTargetTemperature, FeatureTemperature,
         if mode_value is None or not await self.set_property_async(
                 prop=self._prop_mode, value=mode_value):
             raise RuntimeError(
-                f'set climate prop.mode failed, {hvac_mode}, {self.entity_id}')
+                f'set ptc-bath-heater {hvac_mode} failed, {self.entity_id}')
 
     @property
     def hvac_mode(self) -> Optional[HVACMode]:
         """The current hvac mode."""
-        return (self.get_map_value(map_=self._hvac_mode_map,
-                                   key=self.get_prop_value(
-                                       prop=self._prop_mode))
-                if self._prop_mode else None)
+        if self._prop_mode is None:
+            return None
+        mode_value = self.get_map_value(
+            map_=self._hvac_mode_map,
+            key=self.get_prop_value(prop=self._prop_mode))
+        if mode_value == HVACMode.OFF or mode_value is None:
+            return mode_value
+        return HVACMode.AUTO if (HVACMode.AUTO
+                                 in self._attr_hvac_modes) else None
 
 
 class Thermostat(FeatureOnOff, FeatureTargetTemperature, FeatureTemperature,
diff --git a/custom_components/xiaomi_home/miot/specs/specv2entity.py b/custom_components/xiaomi_home/miot/specs/specv2entity.py
index b3039de..015c1ce 100644
--- a/custom_components/xiaomi_home/miot/specs/specv2entity.py
+++ b/custom_components/xiaomi_home/miot/specs/specv2entity.py
@@ -138,7 +138,7 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                 'optional': {
                     'properties': {'mode', 'target-humidity'}
                 }
-            },
+            }
         },
         'optional': {
             'environment': {
@@ -164,8 +164,7 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                         'continue-sweep',
                         'stop-and-gocharge'
                     }
-                },
-
+                }
             }
         },
         'optional': {
@@ -178,9 +177,9 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                 'required': {
                     'properties': {
                         'battery-level': {'read'}
-                    },
+                    }
                 }
-            },
+            }
         },
         'entity': 'vacuum'
     },
@@ -196,7 +195,7 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                 },
                 'optional': {
                     'properties': {'target-humidity'}
-                },
+                }
             }
         },
         'optional': {
@@ -237,7 +236,7 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                     'properties': {
                         'target-temperature', 'mode', 'fan-level',
                         'temperature'}
-                },
+                }
             }
         },
         'optional': {
@@ -246,7 +245,7 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                 'optional': {
                     'properties': {'temperature', 'relative-humidity'}
                 }
-            },
+            }
         },
         'entity': 'thermostat'
     },
@@ -260,7 +259,7 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                 },
                 'optional': {
                     'properties': {'target-temperature', 'heat-level'}
-                },
+                }
             }
         },
         'optional': {
@@ -269,20 +268,21 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                 'optional': {
                     'properties': {'temperature', 'relative-humidity'}
                 }
-            },
+            }
         },
         'entity': 'heater'
     },
     'bath-heater': {
         'required': {
             'ptc-bath-heater': {
-                'required': {},
-                'optional': {
+                'required': {
                     'properties': {
-                        'target-temperature', 'heat-level',
-                        'temperature', 'mode'
+                        'mode':{'read', 'write'}
                     }
                 },
+                'optional': {
+                    'properties': {'target-temperature', 'temperature'}
+                }
             }
         },
         'optional': {
@@ -292,7 +292,13 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                     'properties': {
                         'on', 'fan-level', 'horizontal-swing', 'vertical-swing'
                     }
-                },
+                }
+            },
+            'environment': {
+                'required': {},
+                'optional': {
+                    'properties': {'temperature'}
+                }
             }
         },
         'entity': 'bath-heater',
@@ -308,7 +314,7 @@ SPEC_DEVICE_TRANS_MAP: dict = {
                 },
                 'optional': {
                     'properties': {'mode', 'temperature'}
-                },
+                }
             }
         },
         'optional': {},
@@ -400,7 +406,7 @@ SPEC_SERVICE_TRANS_MAP: dict = {
         },
         'optional': {
             'properties': {
-                'motor-control', 'status', 'current-position', 'target-position'
+                'status', 'current-position', 'target-position'
             }
         },
         'entity': 'cover'