Ok so I took the top of the smoke unit off, and where the heating element touched the wick, the wick was almost black. I removed the wick and re-seated it so a nice clean part would be in contact with the element. photo does not show the black spot well. Smoke seems to be back now, so I guess I burned out part of the wick. The way this smoke unit fills may cause overflows, its kind of a funnel with 2 right angles, so I think the fluid cant pour in smoothly. see photos for shape of smoke duct. Thank you all for your help on this one!
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