it works!! I don't know how to thank you. I tried to solve it all day: P
now it remains for me to turn 2 E3D V6 perfectly, so that there is no difference in height, the next difficult process is in front of me: P
I think I only had the software, setting the second airflow to work. I don't even have it in setup.
It seems its SuperSlicer error. On prusa with the same config its working : >
@o_lampe
Yes I have it too. 2 profiles for filaments. connected to First and second extruder, but only first X is working to change temp on next layers. 
From what I can see just basic heating commands.
At the moment I made 2 profiles for filament and connected them to extruder 1 and 2 on printer . Theoretically this should do the job, but I see that when switching to T1 after the first layer there is no command to lower the temperature in gcode.
I don't even know where to look for a solution.
hi; )
I have already managed to fully run two-color printing in IDEX, but I have one last problem, I think.
I use Superslicer for this and I have a problem with changing the temperature from first layer to the next.
The temperature only changes in X, but remains the same in U. Is it the fault of wrong settings in duet config or in superslicer? I don't know how to go about it now, or what can i change to solve it.
thanks in advance for any guidance!
@bearer so what I can see from this documents, its AOD4184A for mosfet for out1-3. I need to change it, and it will work, probably... 
yea sure. I didnt see any damage, all mosfets on motherboard and other connectors are good for me.
Im trying to find a good mosfet in Poland, but I cant. I only see a large one just like it: https://allegro.pl/oferta/atp216-tl-h-n-channel-power-mosfet-50v-35a-23m-5910866100
its a good one?
I unplugged all the cables and left only the power to verify. Outs 2 and 3 are burning all the time: / I'm guessing there must have been a short circuit and they went down. Is there any chance of rescue? e.g. get what I need to solder so that I can pass it to an electrician and take care of it?
if it wasn't for the fact that it is an IDEX motherboard, I didn't really have any problem, but it is for a double X drive and I am already having a problem.
@bearer said in short circuit on out 2, or maybe bad heater.:
you could remove the sd card or disconnect the ribbon cable to a raspberry pi to rule out config issues but sounds like something has given up the magic smoke.
Im using it without pi, ohh god so what can I do now? ;/ all the time red light is on, as if he wanted to heat all the time.