Hi all! I have a Legacy U30C (6-38419) that all of the sudden started displaying a cab flash code 3. I understand this to mean that there is some sort of issue with the blower motor on the smoke unit. I tried a reset on the locomotive, but the code persisted. Today I removed the shell and had a look at the internals, and visually, everything looks to be in order. I removed the smoke unit from the locomotive and powered the blower manually, and it operated. The armature shaft spins freely. My question is this: If the displays code 3, is there a more precise definition of this code than "fan malfunction"? Does the board check for high resistance or a short? I am unable to find the fault, and I don't want to "throw parts at it", so does anyone have any ideas? Thanks!
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