the fuse was blowing because of the cash out button was not wired right got it back to normal still can not get it to reset the key does nothing sorry for the confusion thanks for everbodys help.
Something's amiss here...
If the cash out button "was not wired right" then the machine NEVER should have worked. It should have always been blowing fuses for ever and ever.
I'd think if you kept blowing fuses, it could be the hopper motor drawing too much current.
That plug has nothing to do with resetting, I believe. If it never was hooked up, you don't need it now. Is it in the door panel or near the hopper?
Try pulling out the hopper (POWER OFF). Close the door and turn the machine back on without the hopper and see if the error code changes.
Knagl or Cowboygames can correct me if this isn't the next step.