Call the Hypertherm tech support line and see if they have a pinout diagram for the CPC connector. Double check all the connections and make sure the wires are in the proper orientation, that all pins are crimped properly, no wires are touching each other, and there are no pins/sockets pushed back in the cpc housing. Once you have done all that if you still have a problem , you might also want to try a new set of consumables. If you still can not find the solution, call the tech line again and troubleshoot with them. Im sure they will have you up and ruunnung again in no time.
Tech support # 800-643-9878
Brad