Fixed E3Dv6 Thermal runaway problem

Discussion in 'E3D-v6 and Lite6' started by Paul Eley, Dec 26, 2016.

  1. Paul Eley

    Paul Eley Member

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    v6 HotEnd Full Kit - 1.75mm Universal (Direct) (12v)

    I have run M303, PID Autotune, and changed the firmware.
    However, the problem is that the hotend cannot maintain the correct temperature.
    I have changed the Heater Cartridge.
    I have changed the NTC thermistor, I even tried the new Block & Sock - V6 Upgrade kit with the cartridge thermistor.
    But still will not hold the temperature.
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  2. Spoon Unit

    Spoon Unit Well-Known Member

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    Rather than not maintaining, it looks like it never actually reaches the target. Those blips above target are surely incorrect data as physics will get in the way of them being correct.

    If indeed you're unable to heat up to temperature, it suggests either the heater is a problem (though you've changed it) or the connection on the RUMBA is a problem (though you would have also changed that when changing heater) or the thermistor is the problem (though you've changed that too).

    Some ideas ...
    Try a lower target temperature as an initial test. (looks like you're having no trouble reaching 150, so try that and see if it will hold there)
    If you have any way to do it, test the actual temperature of the hot end while it's reporting itself holding at 150.
    Try one of the other heater connections (HE1, HE2).
    Try one of the other thermistor connections. (pass on where that is, but it has to be there as the RUMBA can handle 3 extruders.
    Double check the heater is in tight.
    Is the part cooling fan on? If so turn that off while working through this.
    Where is the x-carriage when you're ramping up the temperature here?
     
  3. Kanedias

    Kanedias Well-Known Member

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    is it possible your power supply is not supplying enough current?
     
  4. Paul Eley

    Paul Eley Member

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    Fixed it was the Ramps 1.4 board.
     

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