Hi John
Thanks for the info, I found out later that the runaway was isolated to the MTH Z-750 controller (I will see whats going on with that at a later date. The brick with the IR remote control no runaway naturally. One more thing John is it normal for this engine to have the smoke unit fan running all the time. If so what would be my best bet in your opinion to get synchronized smoke and a bell, like my MTH K-4 pacific Proto 2.0, its the 5 volt system, I do like how it operates and sounds, with my current transformers.
Thanks again Joe