I need a little advice from the experts. I purchased new for my wife the K-line girls set with the PRR 3785 Steam locomotive. I have operated it a few times over the years and it has always been a good performer. Put it on the layout last night and it is throwing the transformer breaker. I have an MTH Z-4000 and when I power the track up the train moves but the overload/short light flashes. Train moves for about 10 seconds then stops. Any ideas on what I should look for? I ran this train about 6 months ago and it ran fine. Thanks
Rodney