[solved] Fan overheating

Discussion in 'E3D-v6 and Lite6' started by mischiminator, Jun 2, 2014.

  1. mischiminator

    mischiminator Member

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    Hi everyone!

    i have a strang problem with the v5... the 30 mm coolingfan overheats as the hotend reaches 200C ... when having the printer at about 180C the fan works fine ... any suggestions

    [EDIT]

    I solved the issue by reattaching the fan to a different 12v source (LED cables)
    the fan was wired to the electonics fan of my ultimaker when the electornics fan spinned up to 100% there was not enough power left for the small fan.
     

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  2. Eaglezsoar

    Eaglezsoar Administrator

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    Re: Fan overheating

    It is hard to tell from your picture but it looks like the fan does not cool all the cooling fins, especially the bottom ones.
    If that is the case it is probably the source of your problems.
     
  3. mischiminator

    mischiminator Member

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    Re: Fan overheating

    all fins are cooled ... i have to admit the picture is not the best

    i taped the fan now and at least it survives the 220C mark :) not a good solution but works for now....
     
  4. Josh

    Josh Administrator
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    Re: Fan overheating

    What do you mean the fan overheats?
     
  5. mischiminator

    mischiminator Member

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    Re: Fan overheating

    the fan gets extreme hot and shutsdown itself
     
  6. Eaglezsoar

    Eaglezsoar Administrator

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    Re: Fan overheating

    Now I am confused, A fan getting hot is not going to shut down anything.
    I think what is happening is that your hotend is getting to hot and that is
    what is shutting down the printer. Is your 30mm fan tied directly into 12 Volts?
    Is it spinning fast? From your picture it is hard to tell if the air from the fan is
    getting to the fins on the V5 hotend. Is there anyway to move the shroud and the
    fan to the back of the HotEnd so that it is in direct contact with the fins as it was
    designed to be?
     
  7. Josh

    Josh Administrator
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    Re: Fan overheating

    It sounds like you may have got the heater block in contact with the heat sink, that is the only way that there would be so much thermal conduction up into the HeatSink.

    If that is the case then you will need to disassemble the HotEnd and put it back together following the instructions available on our documentation page...

    Can you post more photos of your setup?
     

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