diff --git a/fritz_temp_sync/config.yaml b/fritz_temp_sync/config.yaml
index b39f771..8d9f48d 100755
--- a/fritz_temp_sync/config.yaml
+++ b/fritz_temp_sync/config.yaml
@@ -1,6 +1,6 @@
 name: "Fritz!Box Temperature Sync"
 description: "Sync Fritz!DECT thermostat temperatures with other sensors in Home Assistant"
-version: "0.5.1"
+version: "0.5.2"
 startup: "application"
 stage: "stable"
 slug: "fritz_temp_sync"
diff --git a/fritz_temp_sync/fritzbox.py b/fritz_temp_sync/fritzbox.py
index 7c6dd2b..28870eb 100755
--- a/fritz_temp_sync/fritzbox.py
+++ b/fritz_temp_sync/fritzbox.py
@@ -242,12 +242,15 @@ class FritzBox:
             logger.debug("No id or name given")
             return None
 
+        if name is None:
+            name = ""
+
         devices = await self.list_devices()
         if devices is None:
             return None
         found_device: Optional[Device] = None
         for candidate in devices:
-            if candidate.id == idx or candidate.display_name == name:
+            if candidate.id == idx or candidate.display_name.strip() == name.strip():
                 found_device = candidate
                 break
 
@@ -280,6 +283,10 @@ class FritzBox:
             "oldpage": "/net/home_auto_hkr_edit.lua",
         }
         data.update(device.to_web_data())
+        if "Mintemp" not in data:
+            data["Mintemp"] = "16"
+        if "Maxtemp" not in data:
+            data["Maxtemp"] = "23"
 
         await self._request("POST", f"{self.url}/{self._endpoints['data']}", data)