Smoke unit issiue(stunned)

What model? This unit may have an ACREG unit.  Small PCB in heat shrink that controls the heating element via the TMCC commands.  I would test continuity from pins through the heat element to ground before I threw away the smoke PCB.  G

One easy test is check the voltage to the heater connections with the engine powered up and the smoke unit switched on. It should read about 3 VAC with the engine idle. If no voltage is present likely the ACRG is shot.

What does "(stuned)" mean?

Rod

Before replacing the smoke pcb, I would check for continuity from smoke to smoke grd. You know the fan works so that side is OK. I would suspect the item below.

I tested the volts it has none..That is why i am stuned. I have had cords switches motors go bad on these but never a pcb.. Except when someone put the base screw threw it on a ge hybrid...

"...I am stuned..."  Huh?

I'm with Rod on this one...what does "stuned" mean? Never heard the word before.

Perhaps " stumped "

I'm just confused.

I think I agree with Bill, it sounds like the regulator board has died.  I just ran across the same board dead in one.

I said regulator, Bill didn't.  Bill is showing a smoke fan control PCB.  I guess this is a Legacy engine with Vision Smoke unit.  I wasn't sure what control system which is why I asked.

That is one expensive PCB for controlling Smoke fan.

Bill, does that board due more than just smoke fan as the description says?  G

Pretty sure that board controls smoke unit fan and heaters. 

What else does it do Bill, it has a lot of connectors.   G

I think he ment stumped also stunned=To daze or render senseless, by or as if by a blow. 2. To overwhelm or daze with a loud noise. 3. To stupefy, as with the emotional impact of an experience; ...

We can start with two AC Hots, two AC Grds, two smoke on and off switches (main & aux), as needed, serial input, smoke resistor and fan motor out x2.

Bill

Yep, I forgot to mention this board controls two smoke units, the one I worked was the K4 with whistle smoke.

Thanks Bill.  Liked like it did, I can see the 2 high Amp FETs.  I assume all the outputs are DC with the Bridge.  G