After my previous posting I did a web search on the TAS smoke unit and some some information. On the Atlas O GP-35 engine that I have the control unit circuit board is seperate from the smoke circuit board, base, fan, resistive element and thermistor. This was done because of space limitations, the smoke control board is located on the F End whereas the smoke circuit, base, fan, resistive element and thermistor are located near the mid-length of the engine. The four wire leads I checked is the wiring between these two boards, I will check today whether there is voltage across the resistive element. I will fluff up the wick material so that the resistive element and thermistor is embedded in the wick with the smoke fluid . If there is sufficient fluid in this wetted wick the thermistor should allow the resistive element to heat up to create the smoke. At the present time the fan works , if the fluffed up wick and smoke fluid does not correct this issue, then I will have to check the input wiring to the smoke control board on the F End or shut off and not use the smoke unit. This engine with the exception of no smoke works fine in the conventional and command mode.
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