Smoke units keep burning out and causing train to slow down and crawl

What resistor is in smoke unit?   It runs on track power so hard to determine why burning up unless you have the wrong unit in it. G

Not sure what in the world you’ve got going on buddy, as GGG mentioned, check the resistance of that smoke unit, technically, if you burn up a resistor, it should just become an open circuit, and not affect performance, unless your special blend smoke fluid is somehow causing the smoke chamber and puffer mechanism to become melted when the resistor burns up. If the paddle is jammed because of melting, I could see it maybe lurching a little, but not slowing to a crawl....when checking resistance of the smoke element ...be sure no wires or connections are touching the shell, again as GGG mentioned, this smoke unit is hard wired straight to track power via a switch , might post up some pics of your set up, just to see if something is funny looking.......that’s a weird one.......Pat

I figured it out! The smoke unit was burning way hotter than it was supposed to and obviously sucking electricity from the engine(haven’t figured that part out but I’m looking into it). Someone recommended I check the volts from the transformer to the track and he said sometimes they can affect how how the unit gets. I put it on the track it came with ran it for about an hour and no slowing down and no burnt smoke unit! Beautifully performing as intended! Thanks again guys. I’ll try and figure out why it was sucking power like it was and get back to you guys