Hello.I am new here.My father works with a plasma cutting machine,we used it on plasma even since we started using it.But today he did something,I dont know,he said he pressed on a button and then the computer froze and he restarted it.And when he restarted it the machine is now stuck on Oxygen fuel and won't switch to plasma+manual mode isn't working and the torch isn't moving too.
What can we do about that?I dont know much about these machineries.
Thanks in advance.