1. Got a question or need help troubleshooting? Post to the troubleshooting forum or Search the forums!

Unanswered R1+ Hotend clogged, now MINTEMP triggered

Discussion in 'Troubleshooting' started by Just Kelly, May 15, 2016.

  1. Just Kelly

    Just Kelly New Member

    Joined:
    Feb 15, 2016
    Messages:
    16
    Likes Received:
    4
    OK, so I had some PLA get stuck in my hot end and it broke off while I was trying to pull it out (it won't budge even with the extruder temp @ 235). So following the instructions on here I was able to take the hotend out of my R1+. I saw a post that said to take it out and hold it upside-down while heating it up to get the stuck filament out and tried that, but now when I fire up the MatterControl to heat the extruder I get:

    Extruder Switched off. MINTEMP triggered !

    (Also, I noticed that suddenly the Control buttons (moving the axis) don't work anymore. Not sure if that's related. Homing works, though.)

    So what the heck do I do now? Is this something that is covered under warranty? It's only been about 3 months. Thanks in advance
     
    #1 Just Kelly, May 15, 2016
    Crabdude likes this.
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,915
    Likes Received:
    7,338
    Your work on the hotend likely caused an issue with the (fragile) thermistor.
    Probably disconnected so check through the wiring and make sure it is not a broken wire or bad connection back to the RAMPS.
    If not, then it is a bad thermistor. Call Robo and see if you are still under warranty (3 months is the span if I remember correctly). But worst case a new thermistor is cheap.
     
    #2 mark tomlinson, May 15, 2016
  3. Just Kelly

    Just Kelly New Member

    Joined:
    Feb 15, 2016
    Messages:
    16
    Likes Received:
    4
    Now, is the thermistor the little tiny thing in the hotend or the larger cylinder? Because the cylinder came out when I was removing the hotend, but I put it back and tightened the retaining screw on the bottom just enough to hold it in place.
     
    #3 Just Kelly, May 18, 2016
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,915
    Likes Received:
    7,338
    The 'larger cylinder' is probably the heater core.
    Without pictures I can not be certain, but thermistors are small, tiny and made of glass :)


    Small white wire in this picture is the thermistor, red one is heater core:

    Hotendparts.jpg
     
    #4 mark tomlinson, May 18, 2016
  5. Geof

    Geof Volunteer Moderator
    Staff Member

    Joined:
    Nov 9, 2015
    Messages:
    6,757
    Likes Received:
    2,339
    On the r1+ they both look like canisters kind of (new style ones anyway).

    The small wires are the thermistor the larger wires is the heater. :)
     
    #5 Geof, May 18, 2016
    mark tomlinson likes this.
  6. Geof

    Geof Volunteer Moderator
    Staff Member

    Joined:
    Nov 9, 2015
    Messages:
    6,757
    Likes Received:
    2,339
    If the heater wasnr aecure it could cause your error
     
    #6 Geof, May 18, 2016

Share This Page