Operation mode controller

[Nemo007]

Hi, I want to setup Operation mode controller for my a temperature so when it's too hot it turn the fan on 1-10v depends on the temperature, but the problem is in L8 the voltage is -8v.
12000

[Vinny]

Have you tested the fan controller to see if it turns the fans ON when needed?
You can check this by adjusting the nominal value of your temperature probe and saving settings.

[Nemo007]

try it but fans not turn on. Try to measure the voltage output but no voltage.