Sounds like you have a stuck switch, either on the coin door, or credit button. After checking that, make sure your solder joint is secure on AX. A common problem with EMs is the motor continuing to cycle. A switch on each of the scoring reels that closes the circuit at the end of the reset cycle is a common culprit. Even if all the reels are back to zero, the switch may be out of adjustment. Hope that helps. AZKenny