I am having an issue with an operating track section. I have two of roughly the same vintage both are wired identically to the stock controller and using a constant voltage source rather than track voltage. One performs normally without any noise both the uncouple and unload function work. The other the uncouple is working though there is a loud 60 cycle hum when it operates and unload does not function at all but there is a faint hum.
Given that the wires come up through the floor of the layout its hard to be certain the wiring is correct but I am fairly certain it is. Any thoughts on this would be helpful.
Thanks!