Help setting up 4028 part fan (12V + PWM control).

https://os.ratrig.com/docs/configuration/includes-and-overrides

You didn't add it to the correct spot. There's a reason why there's a USER OVERRIDES section
RatOS uses a modular configuration that heavily takes advantage of the config file include and merge logic in Klipper. For this reason, the order of includes and overrides are very important, do not change the order of the configuration unless you know what you're doing.
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