diff --git a/Ladestation_v2/module.php b/Ladestation_v2/module.php
index 12d64f0..69c2d8a 100644
--- a/Ladestation_v2/module.php
+++ b/Ladestation_v2/module.php
@@ -594,7 +594,7 @@ class Ladestation_v2 extends IPSModule
                     // Nichts zu tun für Dummy station
                     return;
                 case 5: 
-                    $url = "https://api.easee.com/api/chargers/".$this->GetValue("Seriennummer")."/commands/set_dynamic_charger_current";
+                    $url = "https://api.easee.com/api/chargers/".$this->ReadPropertyString("Seriennummer")."/commands/set_dynamic_charger_current";
                     curl_setopt_array($ch, [
                         CURLOPT_ENCODING => "",
                         CURLOPT_MAXREDIRS => 10,
@@ -636,7 +636,7 @@ class Ladestation_v2 extends IPSModule
                     // Nichts zu tun für Dummy station
                     return;
                 case 5:
-                    $url2 = "https://api.easee.com/api/chargers/".$this->GetValue("Seriennummer")."/commands/set_dynamic_charger_current";
+                    $url2 = "https://api.easee.com/api/chargers/".$this->ReadPropertyString("Seriennummer")."/commands/set_dynamic_charger_current";
                     curl_setopt_array($ch, [
                         CURLOPT_ENCODING => "",
                         CURLOPT_MAXREDIRS => 10,
diff --git a/Verbraucher_extern/module.php b/Verbraucher_extern/module.php
index e45c17c..78f4ac5 100644
--- a/Verbraucher_extern/module.php
+++ b/Verbraucher_extern/module.php
@@ -132,7 +132,7 @@ class Verbraucher_extern extends IPSModule
         $values = json_decode($this->GetValue("PowerSteps"));
         $result = [];
         
-        $firstCombination = $this->findCombination($this->GetValue("Power"), $this->GetValue("PowerSteps")); 
+        $firstCombination = $this->findCombination($this->GetValue("Power"), json_decode($this->GetValue("PowerSteps"))); 
         
         //$this->find($this->GetValue("Power"), $values, [], $result);