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Unresolved Bed and extruder will not heat.

Discussion in 'Troubleshooting' started by AimeeD, Sep 5, 2016.

  1. AimeeD

    AimeeD New Member

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    I changed out the hot end on my Robo+ Plus after a bad clog, in which I accidentally pulled the thermister wires. Now installed neither that bed or extruder will heat. I do have temperatures registering, but neither will heat in preheat using Matter control. i have control to home and axis control from my computer so it is connecting to the board but wondering if this could be something wrong with the ramps board.
     
    #1 AimeeD, Sep 5, 2016
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    It would almost have to be the RAMPS if the wiring is OK.
     
    #2 mark tomlinson, Sep 5, 2016
  3. AimeeD

    AimeeD New Member

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    Thanks. my plan had been to trace the wiring back to the board.
     
    #3 AimeeD, Sep 5, 2016
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  4. Rigmarol

    Rigmarol Well-Known Member

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    If you have a meter, test your thermister. It should be 100 or so.
     
    #4 Rigmarol, Sep 5, 2016
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  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    100 kohms :)

    Yes, jolly good idea if you have a meter
     
    #5 mark tomlinson, Sep 5, 2016
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  6. AimeeD

    AimeeD New Member

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    So I did follow the wires back and I had miss connected the therm wire. I reconnected everything and I have been able to get the extruder to heat and run appropriately. The bed temp is reading but the bed isn't heating.
     
    #6 AimeeD, Sep 8, 2016
  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Then likely the RAMPS is the issue.
    Check the GCode console for errors (the entire thing).

    In the factory configuration the RAMPS directly drives the heatbed so either the RAMPS has failed or the wiring to the bed heater is bad or the bed heater itself is bad.
     
    #7 mark tomlinson, Sep 8, 2016
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