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+ and - of nozzle fan

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Hi all,

To get the wires through the box above the nozzle I uncoupled the - and + of the fan beside the nozzle.

Stupid me forgot to note/photograph the polarity. I ended up coupling the wires the wrong because the fan suddenly made a fume of smoke one day.

Anyway, I bought a new fan and I want to connect it propperly this time. Which wire is the + (for the red wire on the fan)? The purple wire, or the blue wire?

Thanks in advance!

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Thanks! Problem fixed. New fan installed.

The new fan is slightly shorter (in Z-height).

I am going to print myself a new air difuser now. Instead of the original origami model.

Can't print fast without a fan, that is for sure!

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