The smoke unit generates smoke, but the fan motor does not spin. I pulled it out and attached a 9v battery to the motor...dead. I replaced it with a new Lionel smoke motor. Oh, I checked. It ran like a banshee. Still not spinning. I confirmed it was not running. Turned the volume near off and could not hear the motor spinning. The resistors heat up and produce smoke. I pulled it out, and put a 9v on it and it ran fine. I looked carefully at the wiring and didn't see anything obvious. Oh, I also tried a few feature resets. A feature reset did not solve the problem. A factory reset did not fix it either. Any suggestions? Thanks.
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