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UM2+ & Octopi: Rear Fan Issue

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UM2+ with Octopi: Rear Fan Issue

After just a couple of attempts, I’ve managed to bring my UM2+ to work with OctoPrint on a Raspberry Pi.

Everything works well: file transfer, printing, camera, remote controlling of the process…

However, one thing I can’t bring to function: REAR FAN!

The two fans directed downwards work properly, but the rear fan remains still through the whole printing procedure.

Does anyone have the same issue and – even more importantly – a solution for that?

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