diff --git a/wideq/refrigerator.py b/wideq/refrigerator.py
index f10b4de..9d8f133 100644
--- a/wideq/refrigerator.py
+++ b/wideq/refrigerator.py
@@ -64,24 +64,29 @@ class DoorOpenState(enum.Enum):
 class RefrigeratorDevice(Device):
     """A higher-level interface for a refrigerator."""
 
-    def set_temp_refrigerator_c(self, temp_refrigerator):
+    def set_temp_refrigerator_c(self, temp):
 
-        temp_refrigerator_value = self.model.enum_value('TempRefrigerator', str(temp_refrigerator))
-        # '{"RETM":"{{TempRefrigerator}}", "REFT":"{{TempFreezer}}", "REIP":"{{IcePlus}}", "REEF":"{{EcoFriendly}}" }'
-        self._set_control('RETM', temp_refrigerator_value)
+        value = self.model.enum_value('TempRefrigerator', str(temp))
+        # {
+        #   "RETM":"{{TempRefrigerator}}",
+        #   "REFT":"{{TempFreezer}}",
+        #   "REIP":"{{IcePlus}}",
+        #   "REEF":"{{EcoFriendly}}"
+        # }
+        self._set_control('RETM', value)
 
-    def set_temp_freezer_c(self, temp_freezer):
+    def set_temp_freezer_c(self, temp):
 
-        temp_freezer_value = self.model.enum_value('TempFreezer', str(temp_freezer))
-        self._set_control('REFT', temp_freezer_value)
+        value = self.model.enum_value('TempFreezer', str(temp))
+        self._set_control('REFT', value)
 
     def poll(self) -> Optional['RefrigeratorStatus']:
         """Poll the device's current state.
 
         Monitoring must be started first with `monitor_start`.
 
-        :returns: Either a `RefrigeratorStatus` instance or `None` if the status is
-            not yet available.
+        :returns: Either a `RefrigeratorStatus` instance or `None` if the
+            status is not yet available.
         """
         # Abort if monitoring has not started yet.
         if not hasattr(self, 'mon'):
@@ -108,28 +113,33 @@ class RefrigeratorStatus(object):
 
     @property
     def temp_refrigerator_c(self):
-        return int(lookup_enum('TempRefrigerator', self.data, self.refrigerator))
+        temp = lookup_enum('TempRefrigerator', self.data, self.refrigerator)
+        return int(temp)
 
     @property
     def temp_freezer_c(self):
-        return int(lookup_enum('TempFreezer', self.data, self.refrigerator))
+        temp = lookup_enum('TempFreezer', self.data, self.refrigerator)
+        return int(temp)
 
     @property
     def ice_plus_status(self):
-        return IcePlus(lookup_enum('IcePlus', self.data, self.refrigerator))
+        status = lookup_enum('IcePlus', self.data, self.refrigerator)
+        return IcePlus(status)
 
     @property
     def fresh_air_filter_status(self):
-        return FreshAirFilter(lookup_enum('FreshAirFilter', self.data, self.refrigerator))
+        status = lookup_enum('FreshAirFilter', self.data, self.refrigerator)
+        return FreshAirFilter(status)
 
     @property
     def energy_saving_mode(self):
-        return SmartSavingMode(lookup_enum('SmartSavingMode', self.data, self.refrigerator))
+        mode = lookup_enum('SmartSavingMode', self.data, self.refrigerator)
+        return SmartSavingMode(mode)
 
     @property
     def door_opened(self):
-        door = DoorOpenState(lookup_enum('DoorOpenState', self.data, self.refrigerator))
-        return door == DoorOpenState.OPEN
+        door = lookup_enum('DoorOpenState', self.data, self.refrigerator)
+        return DoorOpenState(door) == DoorOpenState.OPEN
 
     @property
     def temp_unit(self):
@@ -137,13 +147,15 @@ class RefrigeratorStatus(object):
 
     @property
     def energy_saving_enabled(self):
-        status = SmartSavingModeStatus(lookup_enum('SmartSavingModeStatus', self.data, self.refrigerator))
-        return status == SmartSavingModeStatus.ON
+        mode = lookup_enum(
+            'SmartSavingModeStatus', self.data, self.refrigerator
+        )
+        return SmartSavingModeStatus(mode) == SmartSavingModeStatus.ON
 
     @property
     def locked(self):
-        status = LockingStatus(lookup_enum('LockingStatus', self.data, self.refrigerator))
-        return status == LockingStatus.LOCK
+        status = lookup_enum('LockingStatus', self.data, self.refrigerator)
+        return LockingStatus(status) == LockingStatus.LOCK
 
     @property
     def active_saving_status(self):
@@ -151,8 +163,8 @@ class RefrigeratorStatus(object):
 
     @property
     def eco_enabled(self):
-        eco = EcoFriendly(lookup_enum('EcoFriendly', self.data, self.refrigerator))
-        return eco == EcoFriendly.ON
+        eco = lookup_enum('EcoFriendly', self.data, self.refrigerator)
+        return EcoFriendly(eco) == EcoFriendly.ON
 
     @property
     def water_filter_used_month(self):