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Cooling fans issue


grpiotr91

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Posted · Cooling fans issue

Hi,

I am an owner of Ultimaker 2 for about a half a year. Since a week I have been experiencing problems with cooling fans. I try to turn them on at the start of machine.

I go to the maintanace - > advanced - > set fans speed - > set 100% and nothing happens, the voltage on fan pins are 2.5 V.

Where can I look for reason of this issue.

Best regards

Piotr

 

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    Posted · Cooling fans issue

    that's what i tought as well. if you set fan speed the gcode regularly checks if fan speed set to zero as this is what usually is the setup in the gcode.

    when i had this problem i waited the print to start and then set the fans and leave it in the set fans menue that way it stays the value that is on the display..

     

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    Posted · Cooling fans issue

    The transistor responsible for fan's pwm is conducting electricity constantly - w/o depending on settings in controller. I think it is dead.

     

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