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Unresolved M999 error

Discussion in 'Troubleshooting' started by Paul Holwegner, Apr 10, 2019.

  1. Paul Holwegner

    Paul Holwegner New Member

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    hi i am using a robo r1 printer and keep getting the m999 error. Is there any solution
     
    #1 Paul Holwegner, Apr 10, 2019
  2. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    You need to search through the printer log. If you were printing tethered to the computer it should be on your PC or Laptop. M999 is not the actual error, but rather a report of an error. the actual error is sometime before the report. Without that bit of info there is no one here that can actually tell you what went wrong.
     
    #2 WheresWaldo, Apr 11, 2019
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    #3 mark tomlinson, Apr 11, 2019
  4. Paul Holwegner

    Paul Holwegner New Member

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    Here is the link to the error report Please advise
     

    Attached Files:

    #4 Paul Holwegner, Apr 12, 2019
  5. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Bottom of page 33

    Number of reasons, you need to do some detective work,

    Could be any of the following (in no particular order)
    • bad thermistor
    • thermistor with short
    • thermistor out of place
    • fan blowing too much on hot end
    • fan blowing too hard
    • fan blowing on thermistor
    • etc.
     
    #5 WheresWaldo, Apr 13, 2019
    mark tomlinson likes this.
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Just as we suspected :) The FAQ has you covered (and @WheresWaldo does too).

    <-ok [212.785]
    ->N409 G28 X0 Y0 Z0*85 [212.788]
    <-Error:Extruder switched off. Temperature fell too much during print! [214.821]
    <-Error:printer stopped due to errors. Fix the error and use M999 to restart. (Temperature is reset. Set it after restarting) [214.844]
    <-ok [217.693]
     
    #6 mark tomlinson, Apr 13, 2019
  7. Paul Holwegner

    Paul Holwegner New Member

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    Ok so how do i go about checking or fixing the problem.. i have never taken apart the printer and have very little knowledge
     
    #7 Paul Holwegner, Apr 13, 2019
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Did you read the FAQ and attempt what it suggested?

    What have you tried?
     
    #8 mark tomlinson, Apr 13, 2019
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    These are all the options. The last few are easy to try and fix
     
    #9 mark tomlinson, Apr 13, 2019
  10. Paul Holwegner

    Paul Holwegner New Member

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    Sorry i havent tried any yet. Can you send me a instruction on how to test it out
     
    #10 Paul Holwegner, Apr 13, 2019
  11. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Sorry, I can only tell you what we have said.
    Please bear in mind that everyone on here is a printer owner/user just like you.
    I do not have instruction manuals I can give you :)

    Do the obvious for these:

    1)thermistor out of place
    Visually check to make sure it is not knocked out of place on the heater block.

    2)fan blowing too much on hot end
    Make sure the parts fan is OFF (in the slicer settings) and see if that helps. Sure, you need it for some filaments, but see if disabling it makes an improvement.

    3) fan blowing too hard
    See above.

    4)fan blowing on thermistor
    See #1
     
    #11 mark tomlinson, Apr 13, 2019
  12. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    It could also be a faulty thermistor in which case the simple solution is to replace the entire hotend.
    The best solution is to replace the thermistor if you can. We can't help you with that unless we know EXACTLY which printer you have (beta/R1/R1+)
     
    #12 mark tomlinson, Apr 13, 2019

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