its a C&O Lionel 624 switcher postwar celebration 6-18978
I wondering I bought all my switches form tinman and I have the switches wired up for 14 volts with the other KW transformer I remember I use the pigtail adapter to have in the center the 14 volts and the other side I grounded .. When I go back to my layout I'm going to disconnect that extra ground wire and see that's the problem...