I have a Bachmann B23-7 (Union Pacific livery), it is pretty new, only a few days in fact and has literally only been run a few times back and forth along one section of track, but yesterday it stalled on my layout, I went over to it and it was smoking (very acrid stuff, made the mistake of giving it a sniff - which is not recommended LOL).

Presumably something fairly essential failed, since it now no longer works. Is there any way to determine what might need replacing to fix it? I presume it is the motor that went up, which is annoying since it is almost brand new, but is there any specific test I can do to confirm this absolutely is the part at fault? I don't want to buy a replacement motor and then find out it was something else that needed to be replaced.

Some additional info - I was using the Bachmann EZ controller with it on '10' to control the loco since that one is not DCC. I do know it says on the info for that controller that leaving a non DCC loco for a long time on the track not running could damage it, although this was mere seconds for the damage to happen, so I presume that was not the issue, but it'd be interesting to know if that actually was the cause of its demise.

Cheers for any help or suggestions - Al