I think this was a topic sometime ago, but my limited search did not result in any new findings.
I have the above mentioned Legacy engine and I can't seem to keep a smoke unit or fan in this engine. I have probably had a tech replace 3 within a few hours of running. My most recent one was last Christmas and tonight when I decided to put it in on the track, it shorted out and is now giving me 2 quick flashes of the cab light. Has this problem been fixed with these units? I do remember reading several threads that mentioned that Lionel had received a bad batch of these. Not sure if this is true, but with my experience, I would say that there is some truth to that! All of the fans were extremely noisy.
If anyone has an update on this or can't point me to a thread where it is discussed, I'd appreciate it. I think I might try to fix this one myself as I would love to learn how to work on the modern stuff (if it's not too difficult).
Thanks so much.