Encountered this problem with a new NCE Power Cab Starter Set. Resolved it with help from NCE. No need to return unit for service if you are soldering-capable.Turned out to be some faulty soldered connections on the bottom of the Power Cab Panel. I found three pins that were bridged. (Heat up joint, then lightly tap it face down on table to remove off excess solder. Several other pins that were not soldered. Red LED of happiness is now aglow.
NiCE!
https://tstage9.wixsite.com/nyc-modeling
Time...It marches on...without ever turning around to see if anyone is even keeping in step.
Welcome to the Forums, MacMarty! We're always interested in what kind of layout you are building, what scale, how large the layout will be, etc. It sounds like you may already have a layout.
Whatever the case, I hope to hear from you some more.
Your first posts are moderated and may not appear immediately. After you post several times, that will improve.
York1 John