Add back setting self._cooling_enabled at top-level

Author: bouwew

plugwise/smile.py

@@ -130,8 +130,15 @@ async def async_update(self) -> PlugwiseData:
         try:
             await self.full_xml_update()
             self.get_all_gateway_entities()
-            # Check for a failed data-retrieval
-            _ = self.gw_entities[self.gw_data["gateway_id"]]
+            # Set self._cooling_enabled -required for set_temperature,
+            #also, check for a failed data-retrieval
+            if "heater_id" in self.gw_data:
+                heat_cooler = self.gw_entities[self.gw_data["heater_id"]]
+                if (
+                    "binary_sensors" in heat_cooler
+                    and "cooling_enabled" in heat_cooler["binary_sensors"]
+                ):
+                    self._cooling_enabled = heat_cooler["binary_sensors"]["cooling_enabled"]
         except KeyError as err:
             raise DataMissingError("No Plugwise data received") from err