Cooling fan constantly runs even when extruder is at room temp


I am fairly new to 3d printing and have found that my cooling fan (not print cooler) on the side of extruder is constantly running from when i turn printer on. it did not used to do this and am wondering if this is supposed to be happening. The fan even runs when extruder is at room temp.

any advice would be great



  • You need to define a cooling fan for the extruder and connect fan to this pin. Then it only enables >  EXTRUDER_FAN_COOL_TEMP
    Just make sure no other function also uses the same pin, or you do not get what you expect.
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