I have one more issue with the Pennsylvania Flyer RTR set I own. When I turn the smoke unit on, the transformer's green light blinks and the engine slows down and stalls after a while. The light which I believe is wired in parallel with the smoke unit works fine. The smoke unit my loco has is the black plastic one (I believe part # 236-54) which gets actuated by the wheel rod (pumping air). Are those units repairable or should I just get a new one?
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