Definitely fans should be working after the first layer is done. This is usually controlled in Cura although you might have a loose wire.
In Cura, go to "switch to full settings", then "advanced" tab and make sure "enable cooling fan" is checked. Also in expert settings make sure fan speed min and max is 100% and "fan on layer nubmer" should be 1.
If this is all true then something is wrong with your UM2. I would take the (larger) bottom cover off and trace the cable. It may have come loose in shipping.
Im running direct off the SD card so not running via Cura, but have checked the settings and the fan for PLA is set to 100%. Have just edited my post as spotted a third fan at the rear which is working
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gr5 2,295
Definitely fans should be working after the first layer is done. This is usually controlled in Cura although you might have a loose wire.
In Cura, go to "switch to full settings", then "advanced" tab and make sure "enable cooling fan" is checked. Also in expert settings make sure fan speed min and max is 100% and "fan on layer nubmer" should be 1.
If this is all true then something is wrong with your UM2. I would take the (larger) bottom cover off and trace the cable. It may have come loose in shipping.
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