diff --git a/pyhon/appliance.py b/pyhon/appliance.py
index a518076..cc64d72 100644
--- a/pyhon/appliance.py
+++ b/pyhon/appliance.py
@@ -98,6 +98,13 @@ class HonAppliance:
     def nick_name(self) -> str:
         return self._check_name_zone("nickName")
 
+    @property
+    def code(self) -> str:
+        if code := self.info.get("code"):
+            return code
+        serial_number = self.info.get("serialNumber", "")
+        return serial_number[:8] if len(serial_number) < 18 else serial_number[:11]
+
     @property
     def commands_options(self):
         return self._appliance_model.get("options")
diff --git a/pyhon/connection/api.py b/pyhon/connection/api.py
index aace11a..6583bbf 100644
--- a/pyhon/connection/api.py
+++ b/pyhon/connection/api.py
@@ -76,18 +76,19 @@ class HonAPI:
             "macAddress": appliance.mac_address,
             "os": const.OS,
             "appVersion": const.APP_VERSION,
-            "series": appliance.info["series"],
+            "code": appliance.code,
         }
         if firmware_id := appliance.info.get("eepromId"):
             params["firmwareId"] = firmware_id
         if firmware_version := appliance.info.get("fwVersion"):
             params["fwVersion"] = firmware_version
-        if code := appliance.info.get("code"):
-            params["code"] = code
+        if series := appliance.info.get("series"):
+            params["series"] = series
         url: str = f"{const.API_URL}/commands/v1/retrieve"
         async with self._hon.get(url, params=params) as response:
             result: Dict = (await response.json()).get("payload", {})
             if not result or result.pop("resultCode") != "0":
+                _LOGGER.error(await response.json())
                 return {}
             return result
 
diff --git a/setup.py b/setup.py
index 1f85329..bff241d 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ with open("README.md", "r") as f:
 
 setup(
     name="pyhOn",
-    version="0.10.9",
+    version="0.10.10",
     author="Andre Basche",
     description="Control hOn devices with python",
     long_description=long_description,