No Forward Operation

Sounds like the reverse board is dead.  You should be able to find a replacement or it might be possible to repair that reverse board.

Thanks John, but that is beyond my ability  these days.

Well, I got an offer from the seller, a partial refund for repair costs.  I contacted Pat at Pat's Trains, and explained my problem to him.  He made a couple of suggestions, so I took the tender apart, checked all the wiring, and located two relays.  I gave each one a bit of a thump with a small screwdriver, reassembled the tender, put it on the track, and everything works.  Thanks to Patrick, I now have a really nice, quiet running locomotive.  I  actually have two identical locos that I am able to run and enjoy.