u/Vintage_gunner

Sooo, I bought this MTH Dreyfuss Hudson used. It was listed as a totally dead decoder. Once I got it, I powered up the tender, got the lights and sounds to work. When connected to the engine I would get a short error. I did find that the output wires from the tender were backwards. I swapped them over, short error went away but no movement. I was getting power to the boiler board so I got a replacement from MTH. Still same symptoms, I reset it with Loco 55 cv55=55 and no change. I do know about the F3 start up thing. Anyone have an idea what I should be looking into? I’m working with a NCE power cab so I guess I’m limited.