Fan sections are not valid

General Discussion
1

Basic Information:

Printer Model: DIY Cartesian with Titan Aero Extruder
MCU / Printerboard: BTT SKR V1.3
klippy.log

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Describe your issue:

I have a working printer.cfg file that gets me most of the way to printing my first test cube. However, I cannot get the fan for the heatbreak and for the controller working. Each gets the error:
Section ‘controller_fan’ is not a valid config section
or
Section ‘heater_fan’ is not a valid config section

The section [fan] is working fine. I have tried moving the errant sections to different places in the file but that makes no difference.

Here are the sections that get errors:

[heatbreak_cooling_fan]
[fan_generic]
pin: P2.4
heater: extruder
fan_speed: 1.0
heater_temp: 50.0

[controller_fan]
pin: P1.31
fan_speed: 1.0

klippy_log.zip (240.1 KB)

What am I missing?

2

You’re pretty close. Check the documentation here.

A heater_fan has to be given a name, and the way you do that is in the section header, like this:

[heater_fan heatbreak_cooling_fan]
pin: P2.4
heater: extruder
fan_speed: 1.0
heater_temp: 50.0

The same thing applies to controller fans, so:

[controller_fan my_controller_fan]
pin: P1.31
fan_speed: 1.0
3

That was it! I read the example in the documentation and I thought that the two words in brackets were two options for the name of the section as opposed to a section name followed by a heater name.

I’m printing a test cube as we speak…

Thanks

4

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