Here's a situation I've never seen before. I had a customer bring in a brand new Lionel Scout (lionchief model). No smoke. I was going to put a new smoke unit in it, but it turned out upon checking that the original smoker was fine. I find I have no voltage to the smoke unit. When I go from ground to the red wire, I have 10 volts. When I use the blue wire instead of ground, I get nothing. Yet, when I check continuity from the blue wire to ground, It shows that it is connected to ground. Anybody have any ideas on how to fix for my customer?
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Wire colors may not mean anything. Origination of those wires matter. I think smoke power comes from LC board through switch to smoke element to ground. Not sure if chassis or board ground for an LC scout.
So it you have good continuity in that path, the board has failed. May be a fet or triac that can be replaced but may have to replace board. G
Since it's brand new, I'd take the warranty route and let Lionel fix it.
Hm, mine just plain out failed. Could be it has the same safety as the Lionchief plus with turning off the smoke unit when not in motion?
The LC+ smoke unit wiring ends up back at the main board. The engine can run great and the part of the board that runs your smoke unit can be bad. Bottom line, new main board.