induction furnace blowed a water line faulted cpu. no problem i will clear the fault move on. only light i have is fault light nothing else 5/04 series c. so i got another card put it in the slot got online no problem. problem is wrong furnace program so i cleared cpu and now it will not let me download furnace 2 program keeps telling me load from eprom because their is no program in memory. tried both keeps saying 0x4 error or no comms