Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
Sounds like a wire is not connected correctly. Double check the wiring on S8, S6 and the main contactor that sends the load to the lugs. I had a unit that was rebuilt similar to your unit and would trip the overload the same way. Turned out to be a wire hooked incorrectly to S8.