Legacy mikado 2 cab light blinks

Any fix would seem that it will involve pulling the boiler shell I imagine.  I'd check to see if the smoke resistor is dying and/or touching the side of the smoke bowl (if metal).  Could be you just need a new smoke resistor.

That engine is designed to do just what it is doing with a smoke unit failure.  Like John stated, you need a new resistor.  John, that engine uses the plastic smoke reservoir.  It is a very easy job and the engine comes apart very easy.  You can do all the resets in the world and it is what it is.

Like they both said, the Resistor could be bad, If the resistor is held in by screws, on the PCB it might be loose causing temporary function and its when it gets hot hot it loosening up. ALSO smoke fluid does conduct. If you put enough fluid in there it could cause the dead resistor to complete the circuit.  Another thing to look into is the smoke unit harness. I have found Connectors not plugged in all the way and loose Receptacles in the connector housings.  

All great points Bruk made.

I think  all points were good and the one I most agree with is always is I remove and reseat all connectors  then go from there you would be amazed how many times on these electronic engines it is a connector problem and reseating the connector fixes the problem or issue your having ! IMO

Alan

Top suspect in Legacy for that error is loose screws on the resistor.  Whenever I have one of those apart, I always check the screws that hold the smoke resistor.  It's rare that I can't tighten them some.

Agreed.  Any of those always get a look for this issue.  

GRJ and Marty F, that's a great tip on tightening the resistor screws!