diff --git a/Thermo.Active.Utils/supportFunctions.cs b/Thermo.Active.Utils/supportFunctions.cs
index 80fd2587..5defccca 100644
--- a/Thermo.Active.Utils/supportFunctions.cs
+++ b/Thermo.Active.Utils/supportFunctions.cs
@@ -560,12 +560,19 @@ namespace Thermo.Active.Utils
             {
                 machineNumber = "0000";
             }
-            if (containsLetters)
-                // Convert ASCII string to a single INT
-                intMachineVal = SupportFunctions.ConvertAsciiStringToInt(machineNumber);
-            else
-                // Convert string of digits to a INT 
-                intMachineVal = int.Parse(machineNumber);
+            try
+            {
+                if (containsLetters)
+                    // Convert ASCII string to a single INT
+                    intMachineVal = SupportFunctions.ConvertAsciiStringToInt(machineNumber);
+                else
+                    // Convert string of digits to a INT 
+                    intMachineVal = int.Parse(machineNumber);
+            }
+            catch
+            {
+                intMachineVal = 0;
+            }
         }
 
         //----- Chipher Private Class ---------------------------------