marklin loc not running, but has power, help!

After many years in the closet, I unpacked my old Marklin for my son to put around the Christmas tree. The engine has power (the lights come on), but the engine won’t move. When the transformer is turned way up, i hear a noise, but no movement. Any thoughts? Thanks

I suspect, after many years in the closet, your Marklin locomotive may be in need of some servicing. Is this an HO or O gauge locomotive?

Robert

http://www.robertstrains.com/

Can you make the reversing unit step? Unline American trains, Maerklin uses a pulse of high voltage for this.