diff --git a/src/TcoInspectors/src/XAE/XAE/TcoInspectors/POUs/TcoInspectionGroup/TcoInspectionGroup.TcPOU b/src/TcoInspectors/src/XAE/XAE/TcoInspectors/POUs/TcoInspectionGroup/TcoInspectionGroup.TcPOU
index 97079770..c2d87d09 100644
--- a/src/TcoInspectors/src/XAE/XAE/TcoInspectors/POUs/TcoInspectionGroup/TcoInspectionGroup.TcPOU
+++ b/src/TcoInspectors/src/XAE/XAE/TcoInspectors/POUs/TcoInspectionGroup/TcoInspectionGroup.TcPOU
@@ -542,8 +542,17 @@ CASE _currentRunResult.Result OF
 	eOverallResult.Failed:
 		 _refOverallResult:=_originalOverallResult;
 		_refOverallResult.Result		:= eOverallResult.Failed;
-		_refOverallResult.Failures		:= concat(concat(_refOverallResult.Failures,';'), _currentRunResult.Failures);
-		_refOverallResult.ErrorCodes	:= concat(concat(_refOverallResult.ErrorCodes,';'),_currentRunResult.ErrorCodes);
+		 IF  _refOverallResult.Failures<>'' THEN
+			_refOverallResult.Failures		:= concat(concat(_refOverallResult.Failures,';'), _currentRunResult.Failures);
+		 ELSE
+			_refOverallResult.Failures		:=  _currentRunResult.Failures;
+		END_IF;
+		
+		IF  _refOverallResult.ErrorCodes<>'' THEN
+			_refOverallResult.ErrorCodes	:= concat(concat(_refOverallResult.ErrorCodes,';'),_currentRunResult.ErrorCodes);
+		ELSE
+			_refOverallResult.ErrorCodes	:= _currentRunResult.ErrorCodes;
+		END_IF;
 END_CASE
 
 
diff --git a/src/TcoInspectors/tests/PlcUnitTests/TcoInspectionGroupTests.cs b/src/TcoInspectors/tests/PlcUnitTests/TcoInspectionGroupTests.cs
index 3d75d7bb..fc354ccf 100644
--- a/src/TcoInspectors/tests/PlcUnitTests/TcoInspectionGroupTests.cs
+++ b/src/TcoInspectors/tests/PlcUnitTests/TcoInspectionGroupTests.cs
@@ -45,7 +45,14 @@ public void SetUp()
 
             container.ExecuteProbeRun(1, 0);
             InspectorContainer._overallResult.Result.Synchron = 0;
-            container._sut._overallResult.Result.Synchron = 0;            
+            container._sut._overallResult.Result.Synchron = 0;
+
+            InspectorContainer._overallResult.Failures.Synchron = "";
+            InspectorContainer._overallResult.ErrorCodes.Synchron = "";
+            InspectorContainer._sut._overallResult.Failures.Synchron = "";
+            InspectorContainer._sut._overallResult.ErrorCodes.Synchron = "";
+
+
         }
 
 
@@ -309,7 +316,7 @@ public void inspect_failed_description_group_failed()
             var initialState = InspectorContainer._coordinator._state.Synchron;
             var expectedState = (short)(initialState - 10);
             InspectorContainer._retryState.Synchron = expectedState;
-
+            Assert.AreEqual("", InspectorContainer._sut._overallResult.Failures.Synchron);
             InspectorContainer.ExecuteProbeRun((int)eInspectionGroupTests.UpdateComprehensiveResultDescriptions, 
                 () => {
                     Task.Delay(failTime).Wait();