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Unanswered LED's flickering during use. Power Supply issue?

Discussion in 'Troubleshooting' started by Ryan Doyle, Nov 24, 2015.

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  1. Thomas

    Thomas Member

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    Could thermistor be loose somewhere? Or just the thermistor is shot? Oh and yes every time i turn the control knob it does dim or brighten the bed LEDs which is odd.


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    #21 Thomas, Apr 30, 2016
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    That would be one possibility. A loose thermistor that moves around is another. Getting separated from the heater block will make the temperature drop as well. The new Robos use a different way of mounting that makes this a lot less likely and the bad thermistor a lot MORE likely. A loose wire to the RAMPS (from the thermistor) can cause this as well.
     
    #22 mark tomlinson, Apr 30, 2016
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  3. Thomas

    Thomas Member

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    [​IMG][​IMG][​IMG] the two thinner wires correct?


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    #23 Thomas, Apr 30, 2016
  4. Geof

    Geof Volunteer Moderator
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    Yes there is a set screw on the bottom of the block they screw into (heater block)
     
    #24 Geof, Apr 30, 2016
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  5. Geof

    Geof Volunteer Moderator
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    The cooling fan could be overpowering the heater as well. If i have the ceiling fan or ac on it would affect my stock heater.
     
    #25 Geof, Apr 30, 2016
  6. Geof

    Geof Volunteer Moderator
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    Also might be worth verifying the thermistor is well seated onto the ramp. Give all the connectors a good look, expecially the leds and lcd if its giving you fits
     
    #26 Geof, Apr 30, 2016
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  7. Thomas

    Thomas Member

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    Thanks guys


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    #27 Thomas, Apr 30, 2016
  8. KTMDirtFace

    KTMDirtFace Well-Known Member

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    My new stock R1+ the LED's have flickered since I got it. I just ignored it.

    As for temp drops, yep mine does that too. I found 50% cooling fan speed works. if I run it at 100% I get temp fall errors.
     
    #28 KTMDirtFace, May 1, 2016
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  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Larger heater core would help sort that or redirecting the parts fan so it doesn't hit the nozzle.

    If your prints are working -- don't worry about it :)
     
    #29 mark tomlinson, May 1, 2016
  10. Geof

    Geof Volunteer Moderator
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    I printed out fan ducts for my r1+ never had the issue again. 40 watt heaters are a good think to have on the parts shelf for sure
     
    #30 Geof, May 1, 2016
    Last edited: May 1, 2016
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