diff --git a/custom_components/wemportal/coordinator.py b/custom_components/wemportal/coordinator.py
index 3bd6846..5da33fe 100644
--- a/custom_components/wemportal/coordinator.py
+++ b/custom_components/wemportal/coordinator.py
@@ -58,6 +58,7 @@ async def _async_update_data(self):
                         self.config_entry.data.get(CONF_PASSWORD),
                         self.config_entry.options,
                     )
+                    del self.api
                     self.api = new_api
                 except Exception as exc2:
                     raise UpdateFailed from exc2
diff --git a/custom_components/wemportal/wemportalapi.py b/custom_components/wemportal/wemportalapi.py
index 82521f0..3b844f1 100644
--- a/custom_components/wemportal/wemportalapi.py
+++ b/custom_components/wemportal/wemportalapi.py
@@ -182,6 +182,8 @@ def api_login(self):
             "AppVersion": "2.0.2",
             "ClientOS": "Android",
         }
+        if self.session is not None:
+            self.session.close()
         self.session = reqs.Session()
         self.session.cookies.clear()
         self.session.headers.update(self.headers)
@@ -348,8 +350,7 @@ def change_value(
     ):
         """POST request to API to change a specific value"""
         _LOGGER.debug("Changing value for %s", parameter_id)
-        # Encode into UTF-8
-        parameter_id = parameter_id.encode('utf-8')
+
         data = {
             "DeviceID": device_id,
             "Modules": [