Heater fault trouble



  • Alright boys, I'm getting a heater fault shortly after starting a print. I can autotune it fine and bring it up to temp, no big deal. But when I run a print, I get a fault after it starts. Is there one of those light things on the board to tell me when the hotend is working like the heat bed?


  • administrators

    Yes, there are LEDs on the board for each heater output.

    After running auto tuning, you need to save the parameters in one of two ways:

    • If you are not using config-override.g, then run M307 H1 to find the resulting parameters, and edit them into a M307 h1 command in config.g;
    • If you are using config-override.g, send M500 to save the heater parameters in config-override.g.

    See also https://duet3d.dozuki.com/Wiki/Spurious_heater_faults_and_how_to_avoid_them.


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